Home / 157,747.68-217,691.52-86,127.36

Finding the Fourth Proportional to 157,747.68, 217,691.52 and 86,127.36

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Solution

The fourth proportional to 157,747.68, 217,691.52 and 86,127.36 is: 118,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,747.68 : 217,691.52 = 86,127.36 : x
  2. Step 2: Convert to fraction form
    157,747.68/217,691.52 = 86,127.36/x
  3. Step 3: Cross multiply
    157,747.68x = 217,691.52 × 86,127.36
  4. Step 4: Simplify right side
    157,747.68x = 18,749,195,911.99
  5. Step 5: Solve for x
    x = 18,749,195,911.99/157,747.68
  6. Step 6: Final answer
    x = 118,855.60

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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.