Home / 127,177.83-175,506.09-79,458.86

Finding the Fourth Proportional to 127,177.83, 175,506.09 and 79,458.86

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Solution

The fourth proportional to 127,177.83, 175,506.09 and 79,458.86 is: 109,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,177.83 : 175,506.09 = 79,458.86 : x
  2. Step 2: Convert to fraction form
    127,177.83/175,506.09 = 79,458.86/x
  3. Step 3: Cross multiply
    127,177.83x = 175,506.09 × 79,458.86
  4. Step 4: Simplify right side
    127,177.83x = 13,945,512,956.93
  5. Step 5: Solve for x
    x = 13,945,512,956.93/127,177.83
  6. Step 6: Final answer
    x = 109,653.65

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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.