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Finding the Fourth Proportional to 157,651.95, 217,550.97 and 89,659.74

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Solution

The fourth proportional to 157,651.95, 217,550.97 and 89,659.74 is: 123,725.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,651.95 : 217,550.97 = 89,659.74 : x
  2. Step 2: Convert to fraction form
    157,651.95/217,550.97 = 89,659.74/x
  3. Step 3: Cross multiply
    157,651.95x = 217,550.97 × 89,659.74
  4. Step 4: Simplify right side
    157,651.95x = 19,505,563,406.95
  5. Step 5: Solve for x
    x = 19,505,563,406.95/157,651.95
  6. Step 6: Final answer
    x = 123,725.48

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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.