Home / 101,385.12-152,142.96-54,670.56

Finding the Fourth Proportional to 101,385.12, 152,142.96 and 54,670.56

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Solution

The fourth proportional to 101,385.12, 152,142.96 and 54,670.56 is: 82,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385.12 : 152,142.96 = 54,670.56 : x
  2. Step 2: Convert to fraction form
    101,385.12/152,142.96 = 54,670.56/x
  3. Step 3: Cross multiply
    101,385.12x = 152,142.96 × 54,670.56
  4. Step 4: Simplify right side
    101,385.12x = 8,317,740,823.26
  5. Step 5: Solve for x
    x = 8,317,740,823.26/101,385.12
  6. Step 6: Final answer
    x = 82,041.04

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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.