Home / 121,567.60-182,351.40-55,009.90

Finding the Fourth Proportional to 121,567.60, 182,351.40 and 55,009.90

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Solution

The fourth proportional to 121,567.60, 182,351.40 and 55,009.90 is: 82,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,567.60 : 182,351.40 = 55,009.90 : x
  2. Step 2: Convert to fraction form
    121,567.60/182,351.40 = 55,009.90/x
  3. Step 3: Cross multiply
    121,567.60x = 182,351.40 × 55,009.90
  4. Step 4: Simplify right side
    121,567.60x = 10,031,132,278.86
  5. Step 5: Solve for x
    x = 10,031,132,278.86/121,567.60
  6. Step 6: Final answer
    x = 82,514.85

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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.