Home / 142,181.13-213,200.19-47,377.74

Finding the Fourth Proportional to 142,181.13, 213,200.19 and 47,377.74

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Solution

The fourth proportional to 142,181.13, 213,200.19 and 47,377.74 is: 71,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,181.13 : 213,200.19 = 47,377.74 : x
  2. Step 2: Convert to fraction form
    142,181.13/213,200.19 = 47,377.74/x
  3. Step 3: Cross multiply
    142,181.13x = 213,200.19 × 47,377.74
  4. Step 4: Simplify right side
    142,181.13x = 10,100,943,169.77
  5. Step 5: Solve for x
    x = 10,100,943,169.77/142,181.13
  6. Step 6: Final answer
    x = 71,042.78

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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.