Home / 103,821.60-155,732.40-101,853.30

Finding the Fourth Proportional to 103,821.60, 155,732.40 and 101,853.30

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Solution

The fourth proportional to 103,821.60, 155,732.40 and 101,853.30 is: 152,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,821.60 : 155,732.40 = 101,853.30 : x
  2. Step 2: Convert to fraction form
    103,821.60/155,732.40 = 101,853.30/x
  3. Step 3: Cross multiply
    103,821.60x = 155,732.40 × 101,853.30
  4. Step 4: Simplify right side
    103,821.60x = 15,861,858,856.92
  5. Step 5: Solve for x
    x = 15,861,858,856.92/103,821.60
  6. Step 6: Final answer
    x = 152,779.95

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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.