Home / 197,689.94-272,831.65-112,819.76

Finding the Fourth Proportional to 197,689.94, 272,831.65 and 112,819.76

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Solution

The fourth proportional to 197,689.94, 272,831.65 and 112,819.76 is: 155,702.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,689.94 : 272,831.65 = 112,819.76 : x
  2. Step 2: Convert to fraction form
    197,689.94/272,831.65 = 112,819.76/x
  3. Step 3: Cross multiply
    197,689.94x = 272,831.65 × 112,819.76
  4. Step 4: Simplify right side
    197,689.94x = 30,780,801,273.40
  5. Step 5: Solve for x
    x = 30,780,801,273.40/197,689.94
  6. Step 6: Final answer
    x = 155,702.42

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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.