Home / 131,025.32-180,819.78-74,446.28

Finding the Fourth Proportional to 131,025.32, 180,819.78 and 74,446.28

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Solution

The fourth proportional to 131,025.32, 180,819.78 and 74,446.28 is: 102,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,025.32 : 180,819.78 = 74,446.28 : x
  2. Step 2: Convert to fraction form
    131,025.32/180,819.78 = 74,446.28/x
  3. Step 3: Cross multiply
    131,025.32x = 180,819.78 × 74,446.28
  4. Step 4: Simplify right side
    131,025.32x = 13,461,359,971.42
  5. Step 5: Solve for x
    x = 13,461,359,971.42/131,025.32
  6. Step 6: Final answer
    x = 102,738.62

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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.