Home / 104,831.20-157,246.80-69,839.20

Finding the Fourth Proportional to 104,831.20, 157,246.80 and 69,839.20

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Solution

The fourth proportional to 104,831.20, 157,246.80 and 69,839.20 is: 104,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,831.20 : 157,246.80 = 69,839.20 : x
  2. Step 2: Convert to fraction form
    104,831.20/157,246.80 = 69,839.20/x
  3. Step 3: Cross multiply
    104,831.20x = 157,246.80 × 69,839.20
  4. Step 4: Simplify right side
    104,831.20x = 10,981,990,714.56
  5. Step 5: Solve for x
    x = 10,981,990,714.56/104,831.20
  6. Step 6: Final answer
    x = 104,758.80

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1.5x scale

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.