Home / 99,329.12-148,990.37-43,169.28

Finding the Fourth Proportional to 99,329.12, 148,990.37 and 43,169.28

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Solution

The fourth proportional to 99,329.12, 148,990.37 and 43,169.28 is: 64,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,329.12 : 148,990.37 = 43,169.28 : x
  2. Step 2: Convert to fraction form
    99,329.12/148,990.37 = 43,169.28/x
  3. Step 3: Cross multiply
    99,329.12x = 148,990.37 × 43,169.28
  4. Step 4: Simplify right side
    99,329.12x = 6,431,806,999.83
  5. Step 5: Solve for x
    x = 6,431,806,999.83/99,329.12
  6. Step 6: Final answer
    x = 64,752.48

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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.