Home / 134,531.68-185,655-74,102.58

Finding the Fourth Proportional to 134,531.68, 185,655 and 74,102.58

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Solution

The fourth proportional to 134,531.68, 185,655 and 74,102.58 is: 102,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,531.68 : 185,655 = 74,102.58 : x
  2. Step 2: Convert to fraction form
    134,531.68/185,655 = 74,102.58/x
  3. Step 3: Cross multiply
    134,531.68x = 185,655 × 74,102.58
  4. Step 4: Simplify right side
    134,531.68x = 13,757,514,489.90
  5. Step 5: Solve for x
    x = 13,757,514,489.90/134,531.68
  6. Step 6: Final answer
    x = 102,262.27

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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.