Home / 197,691.15-272,812.55-107,045.20

Finding the Fourth Proportional to 197,691.15, 272,812.55 and 107,045.20

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Solution

The fourth proportional to 197,691.15, 272,812.55 and 107,045.20 is: 147,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,691.15 : 272,812.55 = 107,045.20 : x
  2. Step 2: Convert to fraction form
    197,691.15/272,812.55 = 107,045.20/x
  3. Step 3: Cross multiply
    197,691.15x = 272,812.55 × 107,045.20
  4. Step 4: Simplify right side
    197,691.15x = 29,203,273,977.26
  5. Step 5: Solve for x
    x = 29,203,273,977.26/197,691.15
  6. Step 6: Final answer
    x = 147,721.71

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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.