Home / 122,948.36-169,680.90-71,958.05

Finding the Fourth Proportional to 122,948.36, 169,680.90 and 71,958.05

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Solution

The fourth proportional to 122,948.36, 169,680.90 and 71,958.05 is: 99,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,948.36 : 169,680.90 = 71,958.05 : x
  2. Step 2: Convert to fraction form
    122,948.36/169,680.90 = 71,958.05/x
  3. Step 3: Cross multiply
    122,948.36x = 169,680.90 × 71,958.05
  4. Step 4: Simplify right side
    122,948.36x = 12,209,906,686.25
  5. Step 5: Solve for x
    x = 12,209,906,686.25/122,948.36
  6. Step 6: Final answer
    x = 99,309.23

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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.