Home / 121,365.28-167,435.92-73,601.20

Finding the Fourth Proportional to 121,365.28, 167,435.92 and 73,601.20

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Solution

The fourth proportional to 121,365.28, 167,435.92 and 73,601.20 is: 101,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,365.28 : 167,435.92 = 73,601.20 : x
  2. Step 2: Convert to fraction form
    121,365.28/167,435.92 = 73,601.20/x
  3. Step 3: Cross multiply
    121,365.28x = 167,435.92 × 73,601.20
  4. Step 4: Simplify right side
    121,365.28x = 12,323,484,635.10
  5. Step 5: Solve for x
    x = 12,323,484,635.10/121,365.28
  6. Step 6: Final answer
    x = 101,540.45

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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.