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Finding the Fourth Proportional to 157,329.82, 217,116.64 and 89,348.21

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Solution

The fourth proportional to 157,329.82, 217,116.64 and 89,348.21 is: 123,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,329.82 : 217,116.64 = 89,348.21 : x
  2. Step 2: Convert to fraction form
    157,329.82/217,116.64 = 89,348.21/x
  3. Step 3: Cross multiply
    157,329.82x = 217,116.64 × 89,348.21
  4. Step 4: Simplify right side
    157,329.82x = 19,398,983,145.21
  5. Step 5: Solve for x
    x = 19,398,983,145.21/157,329.82
  6. Step 6: Final answer
    x = 123,301.38

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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.