Home / 121,169.36-167,221.82-73,427.40

Finding the Fourth Proportional to 121,169.36, 167,221.82 and 73,427.40

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Solution

The fourth proportional to 121,169.36, 167,221.82 and 73,427.40 is: 101,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,169.36 : 167,221.82 = 73,427.40 : x
  2. Step 2: Convert to fraction form
    121,169.36/167,221.82 = 73,427.40/x
  3. Step 3: Cross multiply
    121,169.36x = 167,221.82 × 73,427.40
  4. Step 4: Simplify right side
    121,169.36x = 12,278,663,465.87
  5. Step 5: Solve for x
    x = 12,278,663,465.87/121,169.36
  6. Step 6: Final answer
    x = 101,334.72

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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.