Home / 123,029.64-169,780.91-66,441.02

Finding the Fourth Proportional to 123,029.64, 169,780.91 and 66,441.02

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Solution

The fourth proportional to 123,029.64, 169,780.91 and 66,441.02 is: 91,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,029.64 : 169,780.91 = 66,441.02 : x
  2. Step 2: Convert to fraction form
    123,029.64/169,780.91 = 66,441.02/x
  3. Step 3: Cross multiply
    123,029.64x = 169,780.91 × 66,441.02
  4. Step 4: Simplify right side
    123,029.64x = 11,280,416,836.93
  5. Step 5: Solve for x
    x = 11,280,416,836.93/123,029.64
  6. Step 6: Final answer
    x = 91,688.61

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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.