Home / 122,120.76-168,522.04-68,403.12

Finding the Fourth Proportional to 122,120.76, 168,522.04 and 68,403.12

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Solution

The fourth proportional to 122,120.76, 168,522.04 and 68,403.12 is: 94,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,120.76 : 168,522.04 = 68,403.12 : x
  2. Step 2: Convert to fraction form
    122,120.76/168,522.04 = 68,403.12/x
  3. Step 3: Cross multiply
    122,120.76x = 168,522.04 × 68,403.12
  4. Step 4: Simplify right side
    122,120.76x = 11,527,433,324.76
  5. Step 5: Solve for x
    x = 11,527,433,324.76/122,120.76
  6. Step 6: Final answer
    x = 94,393.72

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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.