Home / 168,975,233.70-253,084,936.95-138,742,145.70

Finding the Fourth Proportional to 168,975,233.70, 253,084,936.95 and 138,742,145.70

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Solution

The fourth proportional to 168,975,233.70, 253,084,936.95 and 138,742,145.70 is: 207,802,921.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,975,233.70 : 253,084,936.95 = 138,742,145.70 : x
  2. Step 2: Convert to fraction form
    168,975,233.70/253,084,936.95 = 138,742,145.70/x
  3. Step 3: Cross multiply
    168,975,233.70x = 253,084,936.95 × 138,742,145.70
  4. Step 4: Simplify right side
    168,975,233.70x = 35,113,547,196,792,208
  5. Step 5: Solve for x
    x = 35,113,547,196,792,208/168,975,233.70
  6. Step 6: Final answer
    x = 207,802,921.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.