Home / 123,436.56-170,342.10-66,847.80

Finding the Fourth Proportional to 123,436.56, 170,342.10 and 66,847.80

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Solution

The fourth proportional to 123,436.56, 170,342.10 and 66,847.80 is: 92,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,436.56 : 170,342.10 = 66,847.80 : x
  2. Step 2: Convert to fraction form
    123,436.56/170,342.10 = 66,847.80/x
  3. Step 3: Cross multiply
    123,436.56x = 170,342.10 × 66,847.80
  4. Step 4: Simplify right side
    123,436.56x = 11,386,994,632.38
  5. Step 5: Solve for x
    x = 11,386,994,632.38/123,436.56
  6. Step 6: Final answer
    x = 92,249.77

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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.