Home / 99,323.10-148,869.45-40,119.90

Finding the Fourth Proportional to 99,323.10, 148,869.45 and 40,119.90

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Solution

The fourth proportional to 99,323.10, 148,869.45 and 40,119.90 is: 60,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,323.10 : 148,869.45 = 40,119.90 : x
  2. Step 2: Convert to fraction form
    99,323.10/148,869.45 = 40,119.90/x
  3. Step 3: Cross multiply
    99,323.10x = 148,869.45 × 40,119.90
  4. Step 4: Simplify right side
    99,323.10x = 5,972,627,447.06
  5. Step 5: Solve for x
    x = 5,972,627,447.06/99,323.10
  6. Step 6: Final answer
    x = 60,133.32

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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.