Home / 122,610.69-169,197.34-71,628.15

Finding the Fourth Proportional to 122,610.69, 169,197.34 and 71,628.15

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Solution

The fourth proportional to 122,610.69, 169,197.34 and 71,628.15 is: 98,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,610.69 : 169,197.34 = 71,628.15 : x
  2. Step 2: Convert to fraction form
    122,610.69/169,197.34 = 71,628.15/x
  3. Step 3: Cross multiply
    122,610.69x = 169,197.34 × 71,628.15
  4. Step 4: Simplify right side
    122,610.69x = 12,119,292,449.12
  5. Step 5: Solve for x
    x = 12,119,292,449.12/122,610.69
  6. Step 6: Final answer
    x = 98,843.69

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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.