Home / 122,345.64-168,821.82-68,623.20

Finding the Fourth Proportional to 122,345.64, 168,821.82 and 68,623.20

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Solution

The fourth proportional to 122,345.64, 168,821.82 and 68,623.20 is: 94,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,345.64 : 168,821.82 = 68,623.20 : x
  2. Step 2: Convert to fraction form
    122,345.64/168,821.82 = 68,623.20/x
  3. Step 3: Cross multiply
    122,345.64x = 168,821.82 × 68,623.20
  4. Step 4: Simplify right side
    122,345.64x = 11,585,093,518.22
  5. Step 5: Solve for x
    x = 11,585,093,518.22/122,345.64
  6. Step 6: Final answer
    x = 94,691.51

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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.