Home / 121,277.60-182,002.80-51,207.20

Finding the Fourth Proportional to 121,277.60, 182,002.80 and 51,207.20

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Solution

The fourth proportional to 121,277.60, 182,002.80 and 51,207.20 is: 76,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277.60 : 182,002.80 = 51,207.20 : x
  2. Step 2: Convert to fraction form
    121,277.60/182,002.80 = 51,207.20/x
  3. Step 3: Cross multiply
    121,277.60x = 182,002.80 × 51,207.20
  4. Step 4: Simplify right side
    121,277.60x = 9,319,853,780.16
  5. Step 5: Solve for x
    x = 9,319,853,780.16/121,277.60
  6. Step 6: Final answer
    x = 76,847.28

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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.