Home / 138,130.52-207,195.78-55,025.24

Finding the Fourth Proportional to 138,130.52, 207,195.78 and 55,025.24

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Solution

The fourth proportional to 138,130.52, 207,195.78 and 55,025.24 is: 82,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,130.52 : 207,195.78 = 55,025.24 : x
  2. Step 2: Convert to fraction form
    138,130.52/207,195.78 = 55,025.24/x
  3. Step 3: Cross multiply
    138,130.52x = 207,195.78 × 55,025.24
  4. Step 4: Simplify right side
    138,130.52x = 11,400,997,521.49
  5. Step 5: Solve for x
    x = 11,400,997,521.49/138,130.52
  6. Step 6: Final answer
    x = 82,537.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.