Home / 136,428.46-188,246.28-75,997.60

Finding the Fourth Proportional to 136,428.46, 188,246.28 and 75,997.60

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Solution

The fourth proportional to 136,428.46, 188,246.28 and 75,997.60 is: 104,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,428.46 : 188,246.28 = 75,997.60 : x
  2. Step 2: Convert to fraction form
    136,428.46/188,246.28 = 75,997.60/x
  3. Step 3: Cross multiply
    136,428.46x = 188,246.28 × 75,997.60
  4. Step 4: Simplify right side
    136,428.46x = 14,306,265,488.93
  5. Step 5: Solve for x
    x = 14,306,265,488.93/136,428.46
  6. Step 6: Final answer
    x = 104,862.76

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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.