Home / 121,831.68-182,745.60-38,724.48

Finding the Fourth Proportional to 121,831.68, 182,745.60 and 38,724.48

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Solution

The fourth proportional to 121,831.68, 182,745.60 and 38,724.48 is: 58,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,831.68 : 182,745.60 = 38,724.48 : x
  2. Step 2: Convert to fraction form
    121,831.68/182,745.60 = 38,724.48/x
  3. Step 3: Cross multiply
    121,831.68x = 182,745.60 × 38,724.48
  4. Step 4: Simplify right side
    121,831.68x = 7,076,728,332.29
  5. Step 5: Solve for x
    x = 7,076,728,332.29/121,831.68
  6. Step 6: Final answer
    x = 58,086.11

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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.