Home / 140,547.09-210,824.05-55,154.31

Finding the Fourth Proportional to 140,547.09, 210,824.05 and 55,154.31

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Solution

The fourth proportional to 140,547.09, 210,824.05 and 55,154.31 is: 82,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,547.09 : 210,824.05 = 55,154.31 : x
  2. Step 2: Convert to fraction form
    140,547.09/210,824.05 = 55,154.31/x
  3. Step 3: Cross multiply
    140,547.09x = 210,824.05 × 55,154.31
  4. Step 4: Simplify right side
    140,547.09x = 11,627,855,009.16
  5. Step 5: Solve for x
    x = 11,627,855,009.16/140,547.09
  6. Step 6: Final answer
    x = 82,732.81

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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.