Home / 132,417.89-182,723.01-78,692.57

Finding the Fourth Proportional to 132,417.89, 182,723.01 and 78,692.57

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Solution

The fourth proportional to 132,417.89, 182,723.01 and 78,692.57 is: 108,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,417.89 : 182,723.01 = 78,692.57 : x
  2. Step 2: Convert to fraction form
    132,417.89/182,723.01 = 78,692.57/x
  3. Step 3: Cross multiply
    132,417.89x = 182,723.01 × 78,692.57
  4. Step 4: Simplify right side
    132,417.89x = 14,378,943,255.04
  5. Step 5: Solve for x
    x = 14,378,943,255.04/132,417.89
  6. Step 6: Final answer
    x = 108,587.62

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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.