Home / 122,405.22-168,920.37-71,449.74

Finding the Fourth Proportional to 122,405.22, 168,920.37 and 71,449.74

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Solution

The fourth proportional to 122,405.22, 168,920.37 and 71,449.74 is: 98,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,405.22 : 168,920.37 = 71,449.74 : x
  2. Step 2: Convert to fraction form
    122,405.22/168,920.37 = 71,449.74/x
  3. Step 3: Cross multiply
    122,405.22x = 168,920.37 × 71,449.74
  4. Step 4: Simplify right side
    122,405.22x = 12,069,316,517.20
  5. Step 5: Solve for x
    x = 12,069,316,517.20/122,405.22
  6. Step 6: Final answer
    x = 98,601.32

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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.