Home / 157,618.47-217,513.17-85,998.45

Finding the Fourth Proportional to 157,618.47, 217,513.17 and 85,998.45

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Solution

The fourth proportional to 157,618.47, 217,513.17 and 85,998.45 is: 118,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.47 : 217,513.17 = 85,998.45 : x
  2. Step 2: Convert to fraction form
    157,618.47/217,513.17 = 85,998.45/x
  3. Step 3: Cross multiply
    157,618.47x = 217,513.17 × 85,998.45
  4. Step 4: Simplify right side
    157,618.47x = 18,705,795,474.59
  5. Step 5: Solve for x
    x = 18,705,795,474.59/157,618.47
  6. Step 6: Final answer
    x = 118,677.69

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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.