Home / 123,225.24-170,050.80-66,636.61

Finding the Fourth Proportional to 123,225.24, 170,050.80 and 66,636.61

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Solution

The fourth proportional to 123,225.24, 170,050.80 and 66,636.61 is: 91,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,225.24 : 170,050.80 = 66,636.61 : x
  2. Step 2: Convert to fraction form
    123,225.24/170,050.80 = 66,636.61/x
  3. Step 3: Cross multiply
    123,225.24x = 170,050.80 × 66,636.61
  4. Step 4: Simplify right side
    123,225.24x = 11,331,608,839.79
  5. Step 5: Solve for x
    x = 11,331,608,839.79/123,225.24
  6. Step 6: Final answer
    x = 91,958.50

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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.