Home / 140,909.10-211,392.45-47,424.30

Finding the Fourth Proportional to 140,909.10, 211,392.45 and 47,424.30

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Solution

The fourth proportional to 140,909.10, 211,392.45 and 47,424.30 is: 71,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,909.10 : 211,392.45 = 47,424.30 : x
  2. Step 2: Convert to fraction form
    140,909.10/211,392.45 = 47,424.30/x
  3. Step 3: Cross multiply
    140,909.10x = 211,392.45 × 47,424.30
  4. Step 4: Simplify right side
    140,909.10x = 10,025,138,966.54
  5. Step 5: Solve for x
    x = 10,025,138,966.54/140,909.10
  6. Step 6: Final answer
    x = 71,146.14

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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.