Home / 157,499.96-217,345.19-85,881.38

Finding the Fourth Proportional to 157,499.96, 217,345.19 and 85,881.38

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Solution

The fourth proportional to 157,499.96, 217,345.19 and 85,881.38 is: 118,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,499.96 : 217,345.19 = 85,881.38 : x
  2. Step 2: Convert to fraction form
    157,499.96/217,345.19 = 85,881.38/x
  3. Step 3: Cross multiply
    157,499.96x = 217,345.19 × 85,881.38
  4. Step 4: Simplify right side
    157,499.96x = 18,665,903,337.43
  5. Step 5: Solve for x
    x = 18,665,903,337.43/157,499.96
  6. Step 6: Final answer
    x = 118,513.71

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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.