Home / 103,691.30-155,342.55-96,692.90

Finding the Fourth Proportional to 103,691.30, 155,342.55 and 96,692.90

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Solution

The fourth proportional to 103,691.30, 155,342.55 and 96,692.90 is: 144,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.30 : 155,342.55 = 96,692.90 : x
  2. Step 2: Convert to fraction form
    103,691.30/155,342.55 = 96,692.90/x
  3. Step 3: Cross multiply
    103,691.30x = 155,342.55 × 96,692.90
  4. Step 4: Simplify right side
    103,691.30x = 15,020,521,652.90
  5. Step 5: Solve for x
    x = 15,020,521,652.90/103,691.30
  6. Step 6: Final answer
    x = 144,858.07

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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.