Home / 158,198.88-218,377.44-103,771.74

Finding the Fourth Proportional to 158,198.88, 218,377.44 and 103,771.74

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Solution

The fourth proportional to 158,198.88, 218,377.44 and 103,771.74 is: 143,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,198.88 : 218,377.44 = 103,771.74 : x
  2. Step 2: Convert to fraction form
    158,198.88/218,377.44 = 103,771.74/x
  3. Step 3: Cross multiply
    158,198.88x = 218,377.44 × 103,771.74
  4. Step 4: Simplify right side
    158,198.88x = 22,661,406,925.55
  5. Step 5: Solve for x
    x = 22,661,406,925.55/158,198.88
  6. Step 6: Final answer
    x = 143,246.32

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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.