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Finding the Fourth Proportional to 122,179.16, 168,617.58 and 68,463.56

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Solution

The fourth proportional to 122,179.16, 168,617.58 and 68,463.56 is: 94,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,179.16 : 168,617.58 = 68,463.56 : x
  2. Step 2: Convert to fraction form
    122,179.16/168,617.58 = 68,463.56/x
  3. Step 3: Cross multiply
    122,179.16x = 168,617.58 × 68,463.56
  4. Step 4: Simplify right side
    122,179.16x = 11,544,159,805.38
  5. Step 5: Solve for x
    x = 11,544,159,805.38/122,179.16
  6. Step 6: Final answer
    x = 94,485.51

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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.