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Finding the Fourth Proportional to 157,602.85, 217,490.88 and 89,619.82

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Solution

The fourth proportional to 157,602.85, 217,490.88 and 89,619.82 is: 123,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,602.85 : 217,490.88 = 89,619.82 : x
  2. Step 2: Convert to fraction form
    157,602.85/217,490.88 = 89,619.82/x
  3. Step 3: Cross multiply
    157,602.85x = 217,490.88 × 89,619.82
  4. Step 4: Simplify right side
    157,602.85x = 19,491,493,517.24
  5. Step 5: Solve for x
    x = 19,491,493,517.24/157,602.85
  6. Step 6: Final answer
    x = 123,674.75

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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.