Home / 121,656.12-182,347.92-79,617.12

Finding the Fourth Proportional to 121,656.12, 182,347.92 and 79,617.12

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Solution

The fourth proportional to 121,656.12, 182,347.92 and 79,617.12 is: 119,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,656.12 : 182,347.92 = 79,617.12 : x
  2. Step 2: Convert to fraction form
    121,656.12/182,347.92 = 79,617.12/x
  3. Step 3: Cross multiply
    121,656.12x = 182,347.92 × 79,617.12
  4. Step 4: Simplify right side
    121,656.12x = 14,518,016,228.39
  5. Step 5: Solve for x
    x = 14,518,016,228.39/121,656.12
  6. Step 6: Final answer
    x = 119,336.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.