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Finding the Fourth Proportional to 158,228.88, 218,418.84 and 103,801.74

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Solution

The fourth proportional to 158,228.88, 218,418.84 and 103,801.74 is: 143,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,228.88 : 218,418.84 = 103,801.74 : x
  2. Step 2: Convert to fraction form
    158,228.88/218,418.84 = 103,801.74/x
  3. Step 3: Cross multiply
    158,228.88x = 218,418.84 × 103,801.74
  4. Step 4: Simplify right side
    158,228.88x = 22,672,255,640.78
  5. Step 5: Solve for x
    x = 22,672,255,640.78/158,228.88
  6. Step 6: Final answer
    x = 143,287.72

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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.