Home / 101,972.96-152,981.04-31,857.60

Finding the Fourth Proportional to 101,972.96, 152,981.04 and 31,857.60

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Solution

The fourth proportional to 101,972.96, 152,981.04 and 31,857.60 is: 47,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,972.96 : 152,981.04 = 31,857.60 : x
  2. Step 2: Convert to fraction form
    101,972.96/152,981.04 = 31,857.60/x
  3. Step 3: Cross multiply
    101,972.96x = 152,981.04 × 31,857.60
  4. Step 4: Simplify right side
    101,972.96x = 4,873,608,779.90
  5. Step 5: Solve for x
    x = 4,873,608,779.90/101,972.96
  6. Step 6: Final answer
    x = 47,793.15

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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.