Home / 101,723.64-140,371.02-57,003

Finding the Fourth Proportional to 101,723.64, 140,371.02 and 57,003

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Solution

The fourth proportional to 101,723.64, 140,371.02 and 57,003 is: 78,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,723.64 : 140,371.02 = 57,003 : x
  2. Step 2: Convert to fraction form
    101,723.64/140,371.02 = 57,003/x
  3. Step 3: Cross multiply
    101,723.64x = 140,371.02 × 57,003
  4. Step 4: Simplify right side
    101,723.64x = 8,001,569,253.06
  5. Step 5: Solve for x
    x = 8,001,569,253.06/101,723.64
  6. Step 6: Final answer
    x = 78,659.88

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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.