Home / 439,979.30-659,968.95-107,555.30

Finding the Fourth Proportional to 439,979.30, 659,968.95 and 107,555.30

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Solution

The fourth proportional to 439,979.30, 659,968.95 and 107,555.30 is: 161,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,979.30 : 659,968.95 = 107,555.30 : x
  2. Step 2: Convert to fraction form
    439,979.30/659,968.95 = 107,555.30/x
  3. Step 3: Cross multiply
    439,979.30x = 659,968.95 × 107,555.30
  4. Step 4: Simplify right side
    439,979.30x = 70,983,158,407.94
  5. Step 5: Solve for x
    x = 70,983,158,407.94/439,979.30
  6. Step 6: Final answer
    x = 161,332.95

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Similar ratio
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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.