Home / 158,127.89-218,226.17-91,081.49

Finding the Fourth Proportional to 158,127.89, 218,226.17 and 91,081.49

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Solution

The fourth proportional to 158,127.89, 218,226.17 and 91,081.49 is: 125,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,127.89 : 218,226.17 = 91,081.49 : x
  2. Step 2: Convert to fraction form
    158,127.89/218,226.17 = 91,081.49/x
  3. Step 3: Cross multiply
    158,127.89x = 218,226.17 × 91,081.49
  4. Step 4: Simplify right side
    158,127.89x = 19,876,364,720.59
  5. Step 5: Solve for x
    x = 19,876,364,720.59/158,127.89
  6. Step 6: Final answer
    x = 125,698.03

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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.