Home / 132,261.18-182,414.89-86,985.65

Finding the Fourth Proportional to 132,261.18, 182,414.89 and 86,985.65

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Solution

The fourth proportional to 132,261.18, 182,414.89 and 86,985.65 is: 119,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,261.18 : 182,414.89 = 86,985.65 : x
  2. Step 2: Convert to fraction form
    132,261.18/182,414.89 = 86,985.65/x
  3. Step 3: Cross multiply
    132,261.18x = 182,414.89 × 86,985.65
  4. Step 4: Simplify right side
    132,261.18x = 15,867,477,776.33
  5. Step 5: Solve for x
    x = 15,867,477,776.33/132,261.18
  6. Step 6: Final answer
    x = 119,970.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.