Home / 158,379.28-218,566.94-90,394.92

Finding the Fourth Proportional to 158,379.28, 218,566.94 and 90,394.92

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Solution

The fourth proportional to 158,379.28, 218,566.94 and 90,394.92 is: 124,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,379.28 : 218,566.94 = 90,394.92 : x
  2. Step 2: Convert to fraction form
    158,379.28/218,566.94 = 90,394.92/x
  3. Step 3: Cross multiply
    158,379.28x = 218,566.94 × 90,394.92
  4. Step 4: Simplify right side
    158,379.28x = 19,757,341,055.94
  5. Step 5: Solve for x
    x = 19,757,341,055.94/158,379.28
  6. Step 6: Final answer
    x = 124,747.01

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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.