Home / 137,251.20-189,363.50-76,812.24

Finding the Fourth Proportional to 137,251.20, 189,363.50 and 76,812.24

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Solution

The fourth proportional to 137,251.20, 189,363.50 and 76,812.24 is: 105,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,251.20 : 189,363.50 = 76,812.24 : x
  2. Step 2: Convert to fraction form
    137,251.20/189,363.50 = 76,812.24/x
  3. Step 3: Cross multiply
    137,251.20x = 189,363.50 × 76,812.24
  4. Step 4: Simplify right side
    137,251.20x = 14,545,434,609.24
  5. Step 5: Solve for x
    x = 14,545,434,609.24/137,251.20
  6. Step 6: Final answer
    x = 105,976.74

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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.