Home / 126,279.38-174,264.74-69,690.76

Finding the Fourth Proportional to 126,279.38, 174,264.74 and 69,690.76

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Solution

The fourth proportional to 126,279.38, 174,264.74 and 69,690.76 is: 96,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279.38 : 174,264.74 = 69,690.76 : x
  2. Step 2: Convert to fraction form
    126,279.38/174,264.74 = 69,690.76/x
  3. Step 3: Cross multiply
    126,279.38x = 174,264.74 × 69,690.76
  4. Step 4: Simplify right side
    126,279.38x = 12,144,642,171.80
  5. Step 5: Solve for x
    x = 12,144,642,171.80/126,279.38
  6. Step 6: Final answer
    x = 96,172.80

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1.5x scale

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.