Home / 131,643.20-197,510.88-38,154.56

Finding the Fourth Proportional to 131,643.20, 197,510.88 and 38,154.56

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Solution

The fourth proportional to 131,643.20, 197,510.88 and 38,154.56 is: 57,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,643.20 : 197,510.88 = 38,154.56 : x
  2. Step 2: Convert to fraction form
    131,643.20/197,510.88 = 38,154.56/x
  3. Step 3: Cross multiply
    131,643.20x = 197,510.88 × 38,154.56
  4. Step 4: Simplify right side
    131,643.20x = 7,535,940,721.61
  5. Step 5: Solve for x
    x = 7,535,940,721.61/131,643.20
  6. Step 6: Final answer
    x = 57,245.20

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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.