Home / 123,065.12-169,829.94-66,476.52

Finding the Fourth Proportional to 123,065.12, 169,829.94 and 66,476.52

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Solution

The fourth proportional to 123,065.12, 169,829.94 and 66,476.52 is: 91,737.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,065.12 : 169,829.94 = 66,476.52 : x
  2. Step 2: Convert to fraction form
    123,065.12/169,829.94 = 66,476.52/x
  3. Step 3: Cross multiply
    123,065.12x = 169,829.94 × 66,476.52
  4. Step 4: Simplify right side
    123,065.12x = 11,289,703,403.01
  5. Step 5: Solve for x
    x = 11,289,703,403.01/123,065.12
  6. Step 6: Final answer
    x = 91,737.64

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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.