Home / 160,137.60-220,986-88,515.78

Finding the Fourth Proportional to 160,137.60, 220,986 and 88,515.78

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Solution

The fourth proportional to 160,137.60, 220,986 and 88,515.78 is: 122,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,137.60 : 220,986 = 88,515.78 : x
  2. Step 2: Convert to fraction form
    160,137.60/220,986 = 88,515.78/x
  3. Step 3: Cross multiply
    160,137.60x = 220,986 × 88,515.78
  4. Step 4: Simplify right side
    160,137.60x = 19,560,748,159.08
  5. Step 5: Solve for x
    x = 19,560,748,159.08/160,137.60
  6. Step 6: Final answer
    x = 122,149.63

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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.