Home / 132,116.81-182,309.15-78,392.57

Finding the Fourth Proportional to 132,116.81, 182,309.15 and 78,392.57

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Solution

The fourth proportional to 132,116.81, 182,309.15 and 78,392.57 is: 108,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,116.81 : 182,309.15 = 78,392.57 : x
  2. Step 2: Convert to fraction form
    132,116.81/182,309.15 = 78,392.57/x
  3. Step 3: Cross multiply
    132,116.81x = 182,309.15 × 78,392.57
  4. Step 4: Simplify right side
    132,116.81x = 14,291,682,087.45
  5. Step 5: Solve for x
    x = 14,291,682,087.45/132,116.81
  6. Step 6: Final answer
    x = 108,174.60

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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.