Home / 439,631.30-659,434.59-140,129.84

Finding the Fourth Proportional to 439,631.30, 659,434.59 and 140,129.84

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Solution

The fourth proportional to 439,631.30, 659,434.59 and 140,129.84 is: 210,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,631.30 : 659,434.59 = 140,129.84 : x
  2. Step 2: Convert to fraction form
    439,631.30/659,434.59 = 140,129.84/x
  3. Step 3: Cross multiply
    439,631.30x = 659,434.59 × 140,129.84
  4. Step 4: Simplify right side
    439,631.30x = 92,406,463,587.17
  5. Step 5: Solve for x
    x = 92,406,463,587.17/439,631.30
  6. Step 6: Final answer
    x = 210,190.82

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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.