Home / 157,387.36-217,189.04-85,765.92

Finding the Fourth Proportional to 157,387.36, 217,189.04 and 85,765.92

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Solution

The fourth proportional to 157,387.36, 217,189.04 and 85,765.92 is: 118,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,387.36 : 217,189.04 = 85,765.92 : x
  2. Step 2: Convert to fraction form
    157,387.36/217,189.04 = 85,765.92/x
  3. Step 3: Cross multiply
    157,387.36x = 217,189.04 × 85,765.92
  4. Step 4: Simplify right side
    157,387.36x = 18,627,417,829.52
  5. Step 5: Solve for x
    x = 18,627,417,829.52/157,387.36
  6. Step 6: Final answer
    x = 118,353.96

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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.