Home / 132,665.80-183,082.08-72,239.76

Finding the Fourth Proportional to 132,665.80, 183,082.08 and 72,239.76

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Solution

The fourth proportional to 132,665.80, 183,082.08 and 72,239.76 is: 99,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,665.80 : 183,082.08 = 72,239.76 : x
  2. Step 2: Convert to fraction form
    132,665.80/183,082.08 = 72,239.76/x
  3. Step 3: Cross multiply
    132,665.80x = 183,082.08 × 72,239.76
  4. Step 4: Simplify right side
    132,665.80x = 13,225,805,519.50
  5. Step 5: Solve for x
    x = 13,225,805,519.50/132,665.80
  6. Step 6: Final answer
    x = 99,692.65

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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.