Home / 127,206.12-175,620.60-79,524.06

Finding the Fourth Proportional to 127,206.12, 175,620.60 and 79,524.06

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Solution

The fourth proportional to 127,206.12, 175,620.60 and 79,524.06 is: 109,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,206.12 : 175,620.60 = 79,524.06 : x
  2. Step 2: Convert to fraction form
    127,206.12/175,620.60 = 79,524.06/x
  3. Step 3: Cross multiply
    127,206.12x = 175,620.60 × 79,524.06
  4. Step 4: Simplify right side
    127,206.12x = 13,966,063,131.64
  5. Step 5: Solve for x
    x = 13,966,063,131.64/127,206.12
  6. Step 6: Final answer
    x = 109,790.81

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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.