Home / 123,831.80-170,889.87-70,115.38

Finding the Fourth Proportional to 123,831.80, 170,889.87 and 70,115.38

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Solution

The fourth proportional to 123,831.80, 170,889.87 and 70,115.38 is: 96,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,831.80 : 170,889.87 = 70,115.38 : x
  2. Step 2: Convert to fraction form
    123,831.80/170,889.87 = 70,115.38/x
  3. Step 3: Cross multiply
    123,831.80x = 170,889.87 × 70,115.38
  4. Step 4: Simplify right side
    123,831.80x = 11,982,008,173.20
  5. Step 5: Solve for x
    x = 11,982,008,173.20/123,831.80
  6. Step 6: Final answer
    x = 96,760.35

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1.5x scale

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.