Home / 239,800.20-359,700.18-71,319.84

Finding the Fourth Proportional to 239,800.20, 359,700.18 and 71,319.84

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Solution

The fourth proportional to 239,800.20, 359,700.18 and 71,319.84 is: 106,979.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,800.20 : 359,700.18 = 71,319.84 : x
  2. Step 2: Convert to fraction form
    239,800.20/359,700.18 = 71,319.84/x
  3. Step 3: Cross multiply
    239,800.20x = 359,700.18 × 71,319.84
  4. Step 4: Simplify right side
    239,800.20x = 25,653,759,285.57
  5. Step 5: Solve for x
    x = 25,653,759,285.57/239,800.20
  6. Step 6: Final answer
    x = 106,979.72

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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.