Home / 121,718.22-182,598.87-55,155.66

Finding the Fourth Proportional to 121,718.22, 182,598.87 and 55,155.66

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Solution

The fourth proportional to 121,718.22, 182,598.87 and 55,155.66 is: 82,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,718.22 : 182,598.87 = 55,155.66 : x
  2. Step 2: Convert to fraction form
    121,718.22/182,598.87 = 55,155.66/x
  3. Step 3: Cross multiply
    121,718.22x = 182,598.87 × 55,155.66
  4. Step 4: Simplify right side
    121,718.22x = 10,071,361,190.10
  5. Step 5: Solve for x
    x = 10,071,361,190.10/121,718.22
  6. Step 6: Final answer
    x = 82,743.25

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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.