Home / 122,762.31-169,716.45-121,641.48

Finding the Fourth Proportional to 122,762.31, 169,716.45 and 121,641.48

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Solution

The fourth proportional to 122,762.31, 169,716.45 and 121,641.48 is: 168,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,762.31 : 169,716.45 = 121,641.48 : x
  2. Step 2: Convert to fraction form
    122,762.31/169,716.45 = 121,641.48/x
  3. Step 3: Cross multiply
    122,762.31x = 169,716.45 × 121,641.48
  4. Step 4: Simplify right side
    122,762.31x = 20,644,560,158.35
  5. Step 5: Solve for x
    x = 20,644,560,158.35/122,762.31
  6. Step 6: Final answer
    x = 168,166.92

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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.