Home / 124,692.12-187,096.50-72,145.80

Finding the Fourth Proportional to 124,692.12, 187,096.50 and 72,145.80

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Solution

The fourth proportional to 124,692.12, 187,096.50 and 72,145.80 is: 108,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,692.12 : 187,096.50 = 72,145.80 : x
  2. Step 2: Convert to fraction form
    124,692.12/187,096.50 = 72,145.80/x
  3. Step 3: Cross multiply
    124,692.12x = 187,096.50 × 72,145.80
  4. Step 4: Simplify right side
    124,692.12x = 13,498,226,669.70
  5. Step 5: Solve for x
    x = 13,498,226,669.70/124,692.12
  6. Step 6: Final answer
    x = 108,252.44

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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.