Home / 140,531.12-210,692.78-72,966.14

Finding the Fourth Proportional to 140,531.12, 210,692.78 and 72,966.14

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Solution

The fourth proportional to 140,531.12, 210,692.78 and 72,966.14 is: 109,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,531.12 : 210,692.78 = 72,966.14 : x
  2. Step 2: Convert to fraction form
    140,531.12/210,692.78 = 72,966.14/x
  3. Step 3: Cross multiply
    140,531.12x = 210,692.78 × 72,966.14
  4. Step 4: Simplify right side
    140,531.12x = 15,373,438,882.47
  5. Step 5: Solve for x
    x = 15,373,438,882.47/140,531.12
  6. Step 6: Final answer
    x = 109,395.26

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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.