Home / 99,239.60-148,883.40-29,121.20

Finding the Fourth Proportional to 99,239.60, 148,883.40 and 29,121.20

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Solution

The fourth proportional to 99,239.60, 148,883.40 and 29,121.20 is: 43,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,239.60 : 148,883.40 = 29,121.20 : x
  2. Step 2: Convert to fraction form
    99,239.60/148,883.40 = 29,121.20/x
  3. Step 3: Cross multiply
    99,239.60x = 148,883.40 × 29,121.20
  4. Step 4: Simplify right side
    99,239.60x = 4,335,663,268.08
  5. Step 5: Solve for x
    x = 4,335,663,268.08/99,239.60
  6. Step 6: Final answer
    x = 43,688.84

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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.