Home / 121,650.23-167,875.63-70,691.76

Finding the Fourth Proportional to 121,650.23, 167,875.63 and 70,691.76

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Solution

The fourth proportional to 121,650.23, 167,875.63 and 70,691.76 is: 97,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,650.23 : 167,875.63 = 70,691.76 : x
  2. Step 2: Convert to fraction form
    121,650.23/167,875.63 = 70,691.76/x
  3. Step 3: Cross multiply
    121,650.23x = 167,875.63 × 70,691.76
  4. Step 4: Simplify right side
    121,650.23x = 11,867,422,906.43
  5. Step 5: Solve for x
    x = 11,867,422,906.43/121,650.23
  6. Step 6: Final answer
    x = 97,553.65

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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.