Home / 123,455.73-170,382.74-69,744.21

Finding the Fourth Proportional to 123,455.73, 170,382.74 and 69,744.21

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Solution

The fourth proportional to 123,455.73, 170,382.74 and 69,744.21 is: 96,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.73 : 170,382.74 = 69,744.21 : x
  2. Step 2: Convert to fraction form
    123,455.73/170,382.74 = 69,744.21/x
  3. Step 3: Cross multiply
    123,455.73x = 170,382.74 × 69,744.21
  4. Step 4: Simplify right side
    123,455.73x = 11,883,209,511.76
  5. Step 5: Solve for x
    x = 11,883,209,511.76/123,455.73
  6. Step 6: Final answer
    x = 96,254.82

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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.