Home / 138,935.72-191,732.02-75,273.64

Finding the Fourth Proportional to 138,935.72, 191,732.02 and 75,273.64

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Solution

The fourth proportional to 138,935.72, 191,732.02 and 75,273.64 is: 103,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,935.72 : 191,732.02 = 75,273.64 : x
  2. Step 2: Convert to fraction form
    138,935.72/191,732.02 = 75,273.64/x
  3. Step 3: Cross multiply
    138,935.72x = 191,732.02 × 75,273.64
  4. Step 4: Simplify right side
    138,935.72x = 14,432,367,049.95
  5. Step 5: Solve for x
    x = 14,432,367,049.95/138,935.72
  6. Step 6: Final answer
    x = 103,878.02

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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.