Home / 158,049.90-218,129.76-90,091.44

Finding the Fourth Proportional to 158,049.90, 218,129.76 and 90,091.44

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Solution

The fourth proportional to 158,049.90, 218,129.76 and 90,091.44 is: 124,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,049.90 : 218,129.76 = 90,091.44 : x
  2. Step 2: Convert to fraction form
    158,049.90/218,129.76 = 90,091.44/x
  3. Step 3: Cross multiply
    158,049.90x = 218,129.76 × 90,091.44
  4. Step 4: Simplify right side
    158,049.90x = 19,651,624,185.25
  5. Step 5: Solve for x
    x = 19,651,624,185.25/158,049.90
  6. Step 6: Final answer
    x = 124,338.10

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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.