Home / 121,569.60-182,462.40-71,587.20

Finding the Fourth Proportional to 121,569.60, 182,462.40 and 71,587.20

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Solution

The fourth proportional to 121,569.60, 182,462.40 and 71,587.20 is: 107,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,569.60 : 182,462.40 = 71,587.20 : x
  2. Step 2: Convert to fraction form
    121,569.60/182,462.40 = 71,587.20/x
  3. Step 3: Cross multiply
    121,569.60x = 182,462.40 × 71,587.20
  4. Step 4: Simplify right side
    121,569.60x = 13,061,972,321.28
  5. Step 5: Solve for x
    x = 13,061,972,321.28/121,569.60
  6. Step 6: Final answer
    x = 107,444.40

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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.