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Finding the Fourth Proportional to 123,753.06, 170,779.32 and 67,164.42

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Solution

The fourth proportional to 123,753.06, 170,779.32 and 67,164.42 is: 92,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,753.06 : 170,779.32 = 67,164.42 : x
  2. Step 2: Convert to fraction form
    123,753.06/170,779.32 = 67,164.42/x
  3. Step 3: Cross multiply
    123,753.06x = 170,779.32 × 67,164.42
  4. Step 4: Simplify right side
    123,753.06x = 11,470,293,975.79
  5. Step 5: Solve for x
    x = 11,470,293,975.79/123,753.06
  6. Step 6: Final answer
    x = 92,686.95

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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.