Home / 122,921.22-169,634.48-69,208.20

Finding the Fourth Proportional to 122,921.22, 169,634.48 and 69,208.20

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Solution

The fourth proportional to 122,921.22, 169,634.48 and 69,208.20 is: 95,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,921.22 : 169,634.48 = 69,208.20 : x
  2. Step 2: Convert to fraction form
    122,921.22/169,634.48 = 69,208.20/x
  3. Step 3: Cross multiply
    122,921.22x = 169,634.48 × 69,208.20
  4. Step 4: Simplify right side
    122,921.22x = 11,740,097,018.74
  5. Step 5: Solve for x
    x = 11,740,097,018.74/122,921.22
  6. Step 6: Final answer
    x = 95,509.12

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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.