Home / 123,763.13-185,614.95-57,139.25

Finding the Fourth Proportional to 123,763.13, 185,614.95 and 57,139.25

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Solution

The fourth proportional to 123,763.13, 185,614.95 and 57,139.25 is: 85,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,763.13 : 185,614.95 = 57,139.25 : x
  2. Step 2: Convert to fraction form
    123,763.13/185,614.95 = 57,139.25/x
  3. Step 3: Cross multiply
    123,763.13x = 185,614.95 × 57,139.25
  4. Step 4: Simplify right side
    123,763.13x = 10,605,898,103.71
  5. Step 5: Solve for x
    x = 10,605,898,103.71/123,763.13
  6. Step 6: Final answer
    x = 85,695.14

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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.