Home / 161,718.30-242,538.96-71,711.64

Finding the Fourth Proportional to 161,718.30, 242,538.96 and 71,711.64

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Solution

The fourth proportional to 161,718.30, 242,538.96 and 71,711.64 is: 107,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,718.30 : 242,538.96 = 71,711.64 : x
  2. Step 2: Convert to fraction form
    161,718.30/242,538.96 = 71,711.64/x
  3. Step 3: Cross multiply
    161,718.30x = 242,538.96 × 71,711.64
  4. Step 4: Simplify right side
    161,718.30x = 17,392,866,585.49
  5. Step 5: Solve for x
    x = 17,392,866,585.49/161,718.30
  6. Step 6: Final answer
    x = 107,550.39

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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.