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Finding the Fourth Proportional to 142,451.52, 213,691.80 and 48,945.12

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Solution

The fourth proportional to 142,451.52, 213,691.80 and 48,945.12 is: 73,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.52 : 213,691.80 = 48,945.12 : x
  2. Step 2: Convert to fraction form
    142,451.52/213,691.80 = 48,945.12/x
  3. Step 3: Cross multiply
    142,451.52x = 213,691.80 × 48,945.12
  4. Step 4: Simplify right side
    142,451.52x = 10,459,170,794.02
  5. Step 5: Solve for x
    x = 10,459,170,794.02/142,451.52
  6. Step 6: Final answer
    x = 73,422.67

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1.5x scale

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.