Home / 126,521.46-189,875.63-59,961.78

Finding the Fourth Proportional to 126,521.46, 189,875.63 and 59,961.78

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Solution

The fourth proportional to 126,521.46, 189,875.63 and 59,961.78 is: 89,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,521.46 : 189,875.63 = 59,961.78 : x
  2. Step 2: Convert to fraction form
    126,521.46/189,875.63 = 59,961.78/x
  3. Step 3: Cross multiply
    126,521.46x = 189,875.63 × 59,961.78
  4. Step 4: Simplify right side
    126,521.46x = 11,385,280,753.42
  5. Step 5: Solve for x
    x = 11,385,280,753.42/126,521.46
  6. Step 6: Final answer
    x = 89,986.95

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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.