Home / 123,831.30-170,889.18-70,114.88

Finding the Fourth Proportional to 123,831.30, 170,889.18 and 70,114.88

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Solution

The fourth proportional to 123,831.30, 170,889.18 and 70,114.88 is: 96,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,831.30 : 170,889.18 = 70,114.88 : x
  2. Step 2: Convert to fraction form
    123,831.30/170,889.18 = 70,114.88/x
  3. Step 3: Cross multiply
    123,831.30x = 170,889.18 × 70,114.88
  4. Step 4: Simplify right side
    123,831.30x = 11,981,874,349.00
  5. Step 5: Solve for x
    x = 11,981,874,349.00/123,831.30
  6. Step 6: Final answer
    x = 96,759.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.