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Finding the Fourth Proportional to 197,761.64, 272,959.90 and 112,927.92

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Solution

The fourth proportional to 197,761.64, 272,959.90 and 112,927.92 is: 155,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,761.64 : 272,959.90 = 112,927.92 : x
  2. Step 2: Convert to fraction form
    197,761.64/272,959.90 = 112,927.92/x
  3. Step 3: Cross multiply
    197,761.64x = 272,959.90 × 112,927.92
  4. Step 4: Simplify right side
    197,761.64x = 30,824,793,750.41
  5. Step 5: Solve for x
    x = 30,824,793,750.41/197,761.64
  6. Step 6: Final answer
    x = 155,868.42

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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.