Home / 88,398.12-122,034.60-68,209.68

Finding the Fourth Proportional to 88,398.12, 122,034.60 and 68,209.68

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Solution

The fourth proportional to 88,398.12, 122,034.60 and 68,209.68 is: 94,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,398.12 : 122,034.60 = 68,209.68 : x
  2. Step 2: Convert to fraction form
    88,398.12/122,034.60 = 68,209.68/x
  3. Step 3: Cross multiply
    88,398.12x = 122,034.60 × 68,209.68
  4. Step 4: Simplify right side
    88,398.12x = 8,323,941,014.93
  5. Step 5: Solve for x
    x = 8,323,941,014.93/88,398.12
  6. Step 6: Final answer
    x = 94,164.23

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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.