Home / 121,899.66-182,919.15-65,739.39

Finding the Fourth Proportional to 121,899.66, 182,919.15 and 65,739.39

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Solution

The fourth proportional to 121,899.66, 182,919.15 and 65,739.39 is: 98,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,899.66 : 182,919.15 = 65,739.39 : x
  2. Step 2: Convert to fraction form
    121,899.66/182,919.15 = 65,739.39/x
  3. Step 3: Cross multiply
    121,899.66x = 182,919.15 × 65,739.39
  4. Step 4: Simplify right side
    121,899.66x = 12,024,993,340.32
  5. Step 5: Solve for x
    x = 12,024,993,340.32/121,899.66
  6. Step 6: Final answer
    x = 98,646.65

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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.