Home / 122,615.23-169,203.56-71,632.68

Finding the Fourth Proportional to 122,615.23, 169,203.56 and 71,632.68

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Solution

The fourth proportional to 122,615.23, 169,203.56 and 71,632.68 is: 98,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,615.23 : 169,203.56 = 71,632.68 : x
  2. Step 2: Convert to fraction form
    122,615.23/169,203.56 = 71,632.68/x
  3. Step 3: Cross multiply
    122,615.23x = 169,203.56 × 71,632.68
  4. Step 4: Simplify right side
    122,615.23x = 12,120,503,622.32
  5. Step 5: Solve for x
    x = 12,120,503,622.32/122,615.23
  6. Step 6: Final answer
    x = 98,849.91

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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.