Home / 121,279.10-182,005.05-51,208.70

Finding the Fourth Proportional to 121,279.10, 182,005.05 and 51,208.70

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Solution

The fourth proportional to 121,279.10, 182,005.05 and 51,208.70 is: 76,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279.10 : 182,005.05 = 51,208.70 : x
  2. Step 2: Convert to fraction form
    121,279.10/182,005.05 = 51,208.70/x
  3. Step 3: Cross multiply
    121,279.10x = 182,005.05 × 51,208.70
  4. Step 4: Simplify right side
    121,279.10x = 9,320,242,003.94
  5. Step 5: Solve for x
    x = 9,320,242,003.94/121,279.10
  6. Step 6: Final answer
    x = 76,849.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.