Home / 131,123.80-196,685.70-42,440.95

Finding the Fourth Proportional to 131,123.80, 196,685.70 and 42,440.95

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Solution

The fourth proportional to 131,123.80, 196,685.70 and 42,440.95 is: 63,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,123.80 : 196,685.70 = 42,440.95 : x
  2. Step 2: Convert to fraction form
    131,123.80/196,685.70 = 42,440.95/x
  3. Step 3: Cross multiply
    131,123.80x = 196,685.70 × 42,440.95
  4. Step 4: Simplify right side
    131,123.80x = 8,347,527,959.42
  5. Step 5: Solve for x
    x = 8,347,527,959.42/131,123.80
  6. Step 6: Final answer
    x = 63,661.43

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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.