Home / 131,314.05-196,655.31-74,983.46

Finding the Fourth Proportional to 131,314.05, 196,655.31 and 74,983.46

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Solution

The fourth proportional to 131,314.05, 196,655.31 and 74,983.46 is: 112,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,314.05 : 196,655.31 = 74,983.46 : x
  2. Step 2: Convert to fraction form
    131,314.05/196,655.31 = 74,983.46/x
  3. Step 3: Cross multiply
    131,314.05x = 196,655.31 × 74,983.46
  4. Step 4: Simplify right side
    131,314.05x = 14,745,894,587.90
  5. Step 5: Solve for x
    x = 14,745,894,587.90/131,314.05
  6. Step 6: Final answer
    x = 112,294.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.