Home / 142,129.76-213,191.70-47,366.82

Finding the Fourth Proportional to 142,129.76, 213,191.70 and 47,366.82

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Solution

The fourth proportional to 142,129.76, 213,191.70 and 47,366.82 is: 71,049.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,129.76 : 213,191.70 = 47,366.82 : x
  2. Step 2: Convert to fraction form
    142,129.76/213,191.70 = 47,366.82/x
  3. Step 3: Cross multiply
    142,129.76x = 213,191.70 × 47,366.82
  4. Step 4: Simplify right side
    142,129.76x = 10,098,212,879.39
  5. Step 5: Solve for x
    x = 10,098,212,879.39/142,129.76
  6. Step 6: Final answer
    x = 71,049.25

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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.