Home / 158,311.53-218,449.91-126,127.78

Finding the Fourth Proportional to 158,311.53, 218,449.91 and 126,127.78

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Solution

The fourth proportional to 158,311.53, 218,449.91 and 126,127.78 is: 174,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,311.53 : 218,449.91 = 126,127.78 : x
  2. Step 2: Convert to fraction form
    158,311.53/218,449.91 = 126,127.78/x
  3. Step 3: Cross multiply
    158,311.53x = 218,449.91 × 126,127.78
  4. Step 4: Simplify right side
    158,311.53x = 27,552,603,187.48
  5. Step 5: Solve for x
    x = 27,552,603,187.48/158,311.53
  6. Step 6: Final answer
    x = 174,040.41

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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.