Home / 127,136.82-175,514.13-89,578.74

Finding the Fourth Proportional to 127,136.82, 175,514.13 and 89,578.74

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Solution

The fourth proportional to 127,136.82, 175,514.13 and 89,578.74 is: 123,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,136.82 : 175,514.13 = 89,578.74 : x
  2. Step 2: Convert to fraction form
    127,136.82/175,514.13 = 89,578.74/x
  3. Step 3: Cross multiply
    127,136.82x = 175,514.13 × 89,578.74
  4. Step 4: Simplify right side
    127,136.82x = 15,722,334,617.60
  5. Step 5: Solve for x
    x = 15,722,334,617.60/127,136.82
  6. Step 6: Final answer
    x = 123,664.68

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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.