Home / 126,290.32-174,279.78-69,701.70

Finding the Fourth Proportional to 126,290.32, 174,279.78 and 69,701.70

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Solution

The fourth proportional to 126,290.32, 174,279.78 and 69,701.70 is: 96,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,290.32 : 174,279.78 = 69,701.70 : x
  2. Step 2: Convert to fraction form
    126,290.32/174,279.78 = 69,701.70/x
  3. Step 3: Cross multiply
    126,290.32x = 174,279.78 × 69,701.70
  4. Step 4: Simplify right side
    126,290.32x = 12,147,596,941.63
  5. Step 5: Solve for x
    x = 12,147,596,941.63/126,290.32
  6. Step 6: Final answer
    x = 96,187.87

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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.