Home / 159,928.12-220,699.78-88,307.48

Finding the Fourth Proportional to 159,928.12, 220,699.78 and 88,307.48

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Solution

The fourth proportional to 159,928.12, 220,699.78 and 88,307.48 is: 121,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,928.12 : 220,699.78 = 88,307.48 : x
  2. Step 2: Convert to fraction form
    159,928.12/220,699.78 = 88,307.48/x
  3. Step 3: Cross multiply
    159,928.12x = 220,699.78 × 88,307.48
  4. Step 4: Simplify right side
    159,928.12x = 19,489,441,408.35
  5. Step 5: Solve for x
    x = 19,489,441,408.35/159,928.12
  6. Step 6: Final answer
    x = 121,863.76

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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.