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Finding the Fourth Proportional to 157,301.60, 217,068.54 and 89,309.66

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Solution

The fourth proportional to 157,301.60, 217,068.54 and 89,309.66 is: 123,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,301.60 : 217,068.54 = 89,309.66 : x
  2. Step 2: Convert to fraction form
    157,301.60/217,068.54 = 89,309.66/x
  3. Step 3: Cross multiply
    157,301.60x = 217,068.54 × 89,309.66
  4. Step 4: Simplify right side
    157,301.60x = 19,386,317,504.10
  5. Step 5: Solve for x
    x = 19,386,317,504.10/157,301.60
  6. Step 6: Final answer
    x = 123,242.98

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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.