Home / 99,347.20-148,923.60-40,103.80

Finding the Fourth Proportional to 99,347.20, 148,923.60 and 40,103.80

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Solution

The fourth proportional to 99,347.20, 148,923.60 and 40,103.80 is: 60,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,347.20 : 148,923.60 = 40,103.80 : x
  2. Step 2: Convert to fraction form
    99,347.20/148,923.60 = 40,103.80/x
  3. Step 3: Cross multiply
    99,347.20x = 148,923.60 × 40,103.80
  4. Step 4: Simplify right side
    99,347.20x = 5,972,402,269.68
  5. Step 5: Solve for x
    x = 5,972,402,269.68/99,347.20
  6. Step 6: Final answer
    x = 60,116.46

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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.