Home / 197,761.28-272,911.02-107,116.88

Finding the Fourth Proportional to 197,761.28, 272,911.02 and 107,116.88

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Solution

The fourth proportional to 197,761.28, 272,911.02 and 107,116.88 is: 147,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,761.28 : 272,911.02 = 107,116.88 : x
  2. Step 2: Convert to fraction form
    197,761.28/272,911.02 = 107,116.88/x
  3. Step 3: Cross multiply
    197,761.28x = 272,911.02 × 107,116.88
  4. Step 4: Simplify right side
    197,761.28x = 29,233,376,980.02
  5. Step 5: Solve for x
    x = 29,233,376,980.02/197,761.28
  6. Step 6: Final answer
    x = 147,821.54

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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.