Home / 439,637.10-659,455.65-140,115.30

Finding the Fourth Proportional to 439,637.10, 659,455.65 and 140,115.30

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Solution

The fourth proportional to 439,637.10, 659,455.65 and 140,115.30 is: 210,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,637.10 : 659,455.65 = 140,115.30 : x
  2. Step 2: Convert to fraction form
    439,637.10/659,455.65 = 140,115.30/x
  3. Step 3: Cross multiply
    439,637.10x = 659,455.65 × 140,115.30
  4. Step 4: Simplify right side
    439,637.10x = 92,399,826,236.45
  5. Step 5: Solve for x
    x = 92,399,826,236.45/439,637.10
  6. Step 6: Final answer
    x = 210,172.95

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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.