Home / 136,884.60-188,898.84-76,456.32

Finding the Fourth Proportional to 136,884.60, 188,898.84 and 76,456.32

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Solution

The fourth proportional to 136,884.60, 188,898.84 and 76,456.32 is: 105,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.60 : 188,898.84 = 76,456.32 : x
  2. Step 2: Convert to fraction form
    136,884.60/188,898.84 = 76,456.32/x
  3. Step 3: Cross multiply
    136,884.60x = 188,898.84 × 76,456.32
  4. Step 4: Simplify right side
    136,884.60x = 14,442,510,158.67
  5. Step 5: Solve for x
    x = 14,442,510,158.67/136,884.60
  6. Step 6: Final answer
    x = 105,508.66

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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.