Home / 131,122.56-180,949.08-74,537.52

Finding the Fourth Proportional to 131,122.56, 180,949.08 and 74,537.52

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Solution

The fourth proportional to 131,122.56, 180,949.08 and 74,537.52 is: 102,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,122.56 : 180,949.08 = 74,537.52 : x
  2. Step 2: Convert to fraction form
    131,122.56/180,949.08 = 74,537.52/x
  3. Step 3: Cross multiply
    131,122.56x = 180,949.08 × 74,537.52
  4. Step 4: Simplify right side
    131,122.56x = 13,487,495,669.48
  5. Step 5: Solve for x
    x = 13,487,495,669.48/131,122.56
  6. Step 6: Final answer
    x = 102,861.75

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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.