Home / 118,385.64-177,516.09-80,956.35

Finding the Fourth Proportional to 118,385.64, 177,516.09 and 80,956.35

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Solution

The fourth proportional to 118,385.64, 177,516.09 and 80,956.35 is: 121,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,385.64 : 177,516.09 = 80,956.35 : x
  2. Step 2: Convert to fraction form
    118,385.64/177,516.09 = 80,956.35/x
  3. Step 3: Cross multiply
    118,385.64x = 177,516.09 × 80,956.35
  4. Step 4: Simplify right side
    118,385.64x = 14,371,054,712.67
  5. Step 5: Solve for x
    x = 14,371,054,712.67/118,385.64
  6. Step 6: Final answer
    x = 121,391.87

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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.