Home / 123,436.13-170,342.06-66,847.50

Finding the Fourth Proportional to 123,436.13, 170,342.06 and 66,847.50

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Solution

The fourth proportional to 123,436.13, 170,342.06 and 66,847.50 is: 92,249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,436.13 : 170,342.06 = 66,847.50 : x
  2. Step 2: Convert to fraction form
    123,436.13/170,342.06 = 66,847.50/x
  3. Step 3: Cross multiply
    123,436.13x = 170,342.06 × 66,847.50
  4. Step 4: Simplify right side
    123,436.13x = 11,386,940,521.61
  5. Step 5: Solve for x
    x = 11,386,940,521.61/123,436.13
  6. Step 6: Final answer
    x = 92,249.66

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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.