Home / 157,701.80-217,620.87-89,712.36

Finding the Fourth Proportional to 157,701.80, 217,620.87 and 89,712.36

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Solution

The fourth proportional to 157,701.80, 217,620.87 and 89,712.36 is: 123,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,701.80 : 217,620.87 = 89,712.36 : x
  2. Step 2: Convert to fraction form
    157,701.80/217,620.87 = 89,712.36/x
  3. Step 3: Cross multiply
    157,701.80x = 217,620.87 × 89,712.36
  4. Step 4: Simplify right side
    157,701.80x = 19,523,281,832.95
  5. Step 5: Solve for x
    x = 19,523,281,832.95/157,701.80
  6. Step 6: Final answer
    x = 123,798.73

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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.