Home / 99,831.70-149,747.55-92,614.60

Finding the Fourth Proportional to 99,831.70, 149,747.55 and 92,614.60

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Solution

The fourth proportional to 99,831.70, 149,747.55 and 92,614.60 is: 138,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.70 : 149,747.55 = 92,614.60 : x
  2. Step 2: Convert to fraction form
    99,831.70/149,747.55 = 92,614.60/x
  3. Step 3: Cross multiply
    99,831.70x = 149,747.55 × 92,614.60
  4. Step 4: Simplify right side
    99,831.70x = 13,868,809,444.23
  5. Step 5: Solve for x
    x = 13,868,809,444.23/99,831.70
  6. Step 6: Final answer
    x = 138,921.90

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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.