Home / 157,561.12-217,439.40-85,944.16

Finding the Fourth Proportional to 157,561.12, 217,439.40 and 85,944.16

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Solution

The fourth proportional to 157,561.12, 217,439.40 and 85,944.16 is: 118,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,561.12 : 217,439.40 = 85,944.16 : x
  2. Step 2: Convert to fraction form
    157,561.12/217,439.40 = 85,944.16/x
  3. Step 3: Cross multiply
    157,561.12x = 217,439.40 × 85,944.16
  4. Step 4: Simplify right side
    157,561.12x = 18,687,646,583.90
  5. Step 5: Solve for x
    x = 18,687,646,583.90/157,561.12
  6. Step 6: Final answer
    x = 118,605.70

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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.