Home / 121,519.17-167,669.60-70,502.33

Finding the Fourth Proportional to 121,519.17, 167,669.60 and 70,502.33

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Solution

The fourth proportional to 121,519.17, 167,669.60 and 70,502.33 is: 97,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519.17 : 167,669.60 = 70,502.33 : x
  2. Step 2: Convert to fraction form
    121,519.17/167,669.60 = 70,502.33/x
  3. Step 3: Cross multiply
    121,519.17x = 167,669.60 × 70,502.33
  4. Step 4: Simplify right side
    121,519.17x = 11,821,096,279.31
  5. Step 5: Solve for x
    x = 11,821,096,279.31/121,519.17
  6. Step 6: Final answer
    x = 97,277.63

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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.