Home / 100,831.15-151,301.40-41,672.80

Finding the Fourth Proportional to 100,831.15, 151,301.40 and 41,672.80

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Solution

The fourth proportional to 100,831.15, 151,301.40 and 41,672.80 is: 62,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831.15 : 151,301.40 = 41,672.80 : x
  2. Step 2: Convert to fraction form
    100,831.15/151,301.40 = 41,672.80/x
  3. Step 3: Cross multiply
    100,831.15x = 151,301.40 × 41,672.80
  4. Step 4: Simplify right side
    100,831.15x = 6,305,152,981.92
  5. Step 5: Solve for x
    x = 6,305,152,981.92/100,831.15
  6. Step 6: Final answer
    x = 62,531.80

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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.