Home / 131,063.38-180,867.53-74,474.75

Finding the Fourth Proportional to 131,063.38, 180,867.53 and 74,474.75

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Solution

The fourth proportional to 131,063.38, 180,867.53 and 74,474.75 is: 102,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,063.38 : 180,867.53 = 74,474.75 : x
  2. Step 2: Convert to fraction form
    131,063.38/180,867.53 = 74,474.75/x
  3. Step 3: Cross multiply
    131,063.38x = 180,867.53 × 74,474.75
  4. Step 4: Simplify right side
    131,063.38x = 13,470,064,079.87
  5. Step 5: Solve for x
    x = 13,470,064,079.87/131,063.38
  6. Step 6: Final answer
    x = 102,775.19

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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.