Home / 122,116.80-168,520.20-68,402.34

Finding the Fourth Proportional to 122,116.80, 168,520.20 and 68,402.34

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Solution

The fourth proportional to 122,116.80, 168,520.20 and 68,402.34 is: 94,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.80 : 168,520.20 = 68,402.34 : x
  2. Step 2: Convert to fraction form
    122,116.80/168,520.20 = 68,402.34/x
  3. Step 3: Cross multiply
    122,116.80x = 168,520.20 × 68,402.34
  4. Step 4: Simplify right side
    122,116.80x = 11,527,176,017.27
  5. Step 5: Solve for x
    x = 11,527,176,017.27/122,116.80
  6. Step 6: Final answer
    x = 94,394.68

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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.