Home / 121,311.16-167,407.14-67,595.02

Finding the Fourth Proportional to 121,311.16, 167,407.14 and 67,595.02

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Solution

The fourth proportional to 121,311.16, 167,407.14 and 67,595.02 is: 93,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311.16 : 167,407.14 = 67,595.02 : x
  2. Step 2: Convert to fraction form
    121,311.16/167,407.14 = 67,595.02/x
  3. Step 3: Cross multiply
    121,311.16x = 167,407.14 × 67,595.02
  4. Step 4: Simplify right side
    121,311.16x = 11,315,888,976.44
  5. Step 5: Solve for x
    x = 11,315,888,976.44/121,311.16
  6. Step 6: Final answer
    x = 93,279.87

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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.