Home / 127,500.84-191,011.32-74,753.64

Finding the Fourth Proportional to 127,500.84, 191,011.32 and 74,753.64

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Solution

The fourth proportional to 127,500.84, 191,011.32 and 74,753.64 is: 111,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,500.84 : 191,011.32 = 74,753.64 : x
  2. Step 2: Convert to fraction form
    127,500.84/191,011.32 = 74,753.64/x
  3. Step 3: Cross multiply
    127,500.84x = 191,011.32 × 74,753.64
  4. Step 4: Simplify right side
    127,500.84x = 14,278,791,451.20
  5. Step 5: Solve for x
    x = 14,278,791,451.20/127,500.84
  6. Step 6: Final answer
    x = 111,989.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.