Home / 131,748.75-197,648.10-52,869.20

Finding the Fourth Proportional to 131,748.75, 197,648.10 and 52,869.20

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Solution

The fourth proportional to 131,748.75, 197,648.10 and 52,869.20 is: 79,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,748.75 : 197,648.10 = 52,869.20 : x
  2. Step 2: Convert to fraction form
    131,748.75/197,648.10 = 52,869.20/x
  3. Step 3: Cross multiply
    131,748.75x = 197,648.10 × 52,869.20
  4. Step 4: Simplify right side
    131,748.75x = 10,449,495,940.28
  5. Step 5: Solve for x
    x = 10,449,495,940.28/131,748.75
  6. Step 6: Final answer
    x = 79,313.81

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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.