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Finding the Fourth Proportional to 110,420.68, 152,227.42 and 74,553.88

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Solution

The fourth proportional to 110,420.68, 152,227.42 and 74,553.88 is: 102,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,420.68 : 152,227.42 = 74,553.88 : x
  2. Step 2: Convert to fraction form
    110,420.68/152,227.42 = 74,553.88/x
  3. Step 3: Cross multiply
    110,420.68x = 152,227.42 × 74,553.88
  4. Step 4: Simplify right side
    110,420.68x = 11,349,144,803.39
  5. Step 5: Solve for x
    x = 11,349,144,803.39/110,420.68
  6. Step 6: Final answer
    x = 102,780.97

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1.5x scale

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.