Home / 136,338.56-188,143.52-75,909.24

Finding the Fourth Proportional to 136,338.56, 188,143.52 and 75,909.24

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Solution

The fourth proportional to 136,338.56, 188,143.52 and 75,909.24 is: 104,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,338.56 : 188,143.52 = 75,909.24 : x
  2. Step 2: Convert to fraction form
    136,338.56/188,143.52 = 75,909.24/x
  3. Step 3: Cross multiply
    136,338.56x = 188,143.52 × 75,909.24
  4. Step 4: Simplify right side
    136,338.56x = 14,281,831,614.12
  5. Step 5: Solve for x
    x = 14,281,831,614.12/136,338.56
  6. Step 6: Final answer
    x = 104,752.70

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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.