Home / 121,997.04-168,370.92-74,255.28

Finding the Fourth Proportional to 121,997.04, 168,370.92 and 74,255.28

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Solution

The fourth proportional to 121,997.04, 168,370.92 and 74,255.28 is: 102,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,997.04 : 168,370.92 = 74,255.28 : x
  2. Step 2: Convert to fraction form
    121,997.04/168,370.92 = 74,255.28/x
  3. Step 3: Cross multiply
    121,997.04x = 168,370.92 × 74,255.28
  4. Step 4: Simplify right side
    121,997.04x = 12,502,429,808.46
  5. Step 5: Solve for x
    x = 12,502,429,808.46/121,997.04
  6. Step 6: Final answer
    x = 102,481.42

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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.