Home / 85,854.22-118,458.92-74,503.68

Finding the Fourth Proportional to 85,854.22, 118,458.92 and 74,503.68

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Solution

The fourth proportional to 85,854.22, 118,458.92 and 74,503.68 is: 102,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,854.22 : 118,458.92 = 74,503.68 : x
  2. Step 2: Convert to fraction form
    85,854.22/118,458.92 = 74,503.68/x
  3. Step 3: Cross multiply
    85,854.22x = 118,458.92 × 74,503.68
  4. Step 4: Simplify right side
    85,854.22x = 8,825,625,468.83
  5. Step 5: Solve for x
    x = 8,825,625,468.83/85,854.22
  6. Step 6: Final answer
    x = 102,797.81

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1.5x scale

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.