Home / 101,149.13-139,592.16-58,142.39

Finding the Fourth Proportional to 101,149.13, 139,592.16 and 58,142.39

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Solution

The fourth proportional to 101,149.13, 139,592.16 and 58,142.39 is: 80,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,149.13 : 139,592.16 = 58,142.39 : x
  2. Step 2: Convert to fraction form
    101,149.13/139,592.16 = 58,142.39/x
  3. Step 3: Cross multiply
    101,149.13x = 139,592.16 × 58,142.39
  4. Step 4: Simplify right side
    101,149.13x = 8,116,221,109.70
  5. Step 5: Solve for x
    x = 8,116,221,109.70/101,149.13
  6. Step 6: Final answer
    x = 80,240.15

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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.