Home / 121,256.82-167,334.65-70,279.47

Finding the Fourth Proportional to 121,256.82, 167,334.65 and 70,279.47

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Solution

The fourth proportional to 121,256.82, 167,334.65 and 70,279.47 is: 96,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,256.82 : 167,334.65 = 70,279.47 : x
  2. Step 2: Convert to fraction form
    121,256.82/167,334.65 = 70,279.47/x
  3. Step 3: Cross multiply
    121,256.82x = 167,334.65 × 70,279.47
  4. Step 4: Simplify right side
    121,256.82x = 11,760,190,514.64
  5. Step 5: Solve for x
    x = 11,760,190,514.64/121,256.82
  6. Step 6: Final answer
    x = 96,985.81

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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.