Home / 122,239.22-168,690.74-71,287.29

Finding the Fourth Proportional to 122,239.22, 168,690.74 and 71,287.29

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Solution

The fourth proportional to 122,239.22, 168,690.74 and 71,287.29 is: 98,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,239.22 : 168,690.74 = 71,287.29 : x
  2. Step 2: Convert to fraction form
    122,239.22/168,690.74 = 71,287.29/x
  3. Step 3: Cross multiply
    122,239.22x = 168,690.74 × 71,287.29
  4. Step 4: Simplify right side
    122,239.22x = 12,025,505,346.26
  5. Step 5: Solve for x
    x = 12,025,505,346.26/122,239.22
  6. Step 6: Final answer
    x = 98,376.82

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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.