Home / 157,742.87-217,689.96-89,769.62

Finding the Fourth Proportional to 157,742.87, 217,689.96 and 89,769.62

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Solution

The fourth proportional to 157,742.87, 217,689.96 and 89,769.62 is: 123,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,742.87 : 217,689.96 = 89,769.62 : x
  2. Step 2: Convert to fraction form
    157,742.87/217,689.96 = 89,769.62/x
  3. Step 3: Cross multiply
    157,742.87x = 217,689.96 × 89,769.62
  4. Step 4: Simplify right side
    157,742.87x = 19,541,943,885.94
  5. Step 5: Solve for x
    x = 19,541,943,885.94/157,742.87
  6. Step 6: Final answer
    x = 123,884.80

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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.