Home / 118,831.86-178,253.15-38,874.38

Finding the Fourth Proportional to 118,831.86, 178,253.15 and 38,874.38

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Solution

The fourth proportional to 118,831.86, 178,253.15 and 38,874.38 is: 58,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,831.86 : 178,253.15 = 38,874.38 : x
  2. Step 2: Convert to fraction form
    118,831.86/178,253.15 = 38,874.38/x
  3. Step 3: Cross multiply
    118,831.86x = 178,253.15 × 38,874.38
  4. Step 4: Simplify right side
    118,831.86x = 6,929,480,689.30
  5. Step 5: Solve for x
    x = 6,929,480,689.30/118,831.86
  6. Step 6: Final answer
    x = 58,313.32

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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.