Home / 136,320.20-188,126.36-75,072.92

Finding the Fourth Proportional to 136,320.20, 188,126.36 and 75,072.92

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Solution

The fourth proportional to 136,320.20, 188,126.36 and 75,072.92 is: 103,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,320.20 : 188,126.36 = 75,072.92 : x
  2. Step 2: Convert to fraction form
    136,320.20/188,126.36 = 75,072.92/x
  3. Step 3: Cross multiply
    136,320.20x = 188,126.36 × 75,072.92
  4. Step 4: Simplify right side
    136,320.20x = 14,123,195,174.17
  5. Step 5: Solve for x
    x = 14,123,195,174.17/136,320.20
  6. Step 6: Final answer
    x = 103,603.10

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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.