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Finding the Fourth Proportional to 119,581.64, 179,370.78 and 40,750.76

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Solution

The fourth proportional to 119,581.64, 179,370.78 and 40,750.76 is: 61,125.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,581.64 : 179,370.78 = 40,750.76 : x
  2. Step 2: Convert to fraction form
    119,581.64/179,370.78 = 40,750.76/x
  3. Step 3: Cross multiply
    119,581.64x = 179,370.78 × 40,750.76
  4. Step 4: Simplify right side
    119,581.64x = 7,309,495,606.79
  5. Step 5: Solve for x
    x = 7,309,495,606.79/119,581.64
  6. Step 6: Final answer
    x = 61,125.57

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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.