Home / 102,330.43-153,308.61-74,180.66

Finding the Fourth Proportional to 102,330.43, 153,308.61 and 74,180.66

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Solution

The fourth proportional to 102,330.43, 153,308.61 and 74,180.66 is: 111,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,330.43 : 153,308.61 = 74,180.66 : x
  2. Step 2: Convert to fraction form
    102,330.43/153,308.61 = 74,180.66/x
  3. Step 3: Cross multiply
    102,330.43x = 153,308.61 × 74,180.66
  4. Step 4: Simplify right side
    102,330.43x = 11,372,534,073.62
  5. Step 5: Solve for x
    x = 11,372,534,073.62/102,330.43
  6. Step 6: Final answer
    x = 111,135.41

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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.