Home / 122,119.56-168,520.10-68,401.80

Finding the Fourth Proportional to 122,119.56, 168,520.10 and 68,401.80

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Solution

The fourth proportional to 122,119.56, 168,520.10 and 68,401.80 is: 94,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,119.56 : 168,520.10 = 68,401.80 : x
  2. Step 2: Convert to fraction form
    122,119.56/168,520.10 = 68,401.80/x
  3. Step 3: Cross multiply
    122,119.56x = 168,520.10 × 68,401.80
  4. Step 4: Simplify right side
    122,119.56x = 11,527,077,834.17
  5. Step 5: Solve for x
    x = 11,527,077,834.17/122,119.56
  6. Step 6: Final answer
    x = 94,391.74

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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.