Home / 136,388.08-188,208.14-75,122.35

Finding the Fourth Proportional to 136,388.08, 188,208.14 and 75,122.35

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Solution

The fourth proportional to 136,388.08, 188,208.14 and 75,122.35 is: 103,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,388.08 : 188,208.14 = 75,122.35 : x
  2. Step 2: Convert to fraction form
    136,388.08/188,208.14 = 75,122.35/x
  3. Step 3: Cross multiply
    136,388.08x = 188,208.14 × 75,122.35
  4. Step 4: Simplify right side
    136,388.08x = 14,138,636,824.89
  5. Step 5: Solve for x
    x = 14,138,636,824.89/136,388.08
  6. Step 6: Final answer
    x = 103,664.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.