Home / 158,781.84-219,136.37-90,805.14

Finding the Fourth Proportional to 158,781.84, 219,136.37 and 90,805.14

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Solution

The fourth proportional to 158,781.84, 219,136.37 and 90,805.14 is: 125,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,781.84 : 219,136.37 = 90,805.14 : x
  2. Step 2: Convert to fraction form
    158,781.84/219,136.37 = 90,805.14/x
  3. Step 3: Cross multiply
    158,781.84x = 219,136.37 × 90,805.14
  4. Step 4: Simplify right side
    158,781.84x = 19,898,708,541.94
  5. Step 5: Solve for x
    x = 19,898,708,541.94/158,781.84
  6. Step 6: Final answer
    x = 125,321.06

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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.