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Finding the Fourth Proportional to 123,754.37, 170,780.02 and 67,165.74

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Solution

The fourth proportional to 123,754.37, 170,780.02 and 67,165.74 is: 92,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,754.37 : 170,780.02 = 67,165.74 : x
  2. Step 2: Convert to fraction form
    123,754.37/170,780.02 = 67,165.74/x
  3. Step 3: Cross multiply
    123,754.37x = 170,780.02 × 67,165.74
  4. Step 4: Simplify right side
    123,754.37x = 11,470,566,252.60
  5. Step 5: Solve for x
    x = 11,470,566,252.60/123,754.37
  6. Step 6: Final answer
    x = 92,688.18

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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.