Home / 140,947.28-211,420.92-42,451.28

Finding the Fourth Proportional to 140,947.28, 211,420.92 and 42,451.28

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Solution

The fourth proportional to 140,947.28, 211,420.92 and 42,451.28 is: 63,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,947.28 : 211,420.92 = 42,451.28 : x
  2. Step 2: Convert to fraction form
    140,947.28/211,420.92 = 42,451.28/x
  3. Step 3: Cross multiply
    140,947.28x = 211,420.92 × 42,451.28
  4. Step 4: Simplify right side
    140,947.28x = 8,975,088,672.78
  5. Step 5: Solve for x
    x = 8,975,088,672.78/140,947.28
  6. Step 6: Final answer
    x = 63,676.92

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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.