Home / 79,415.13-119,693.51-68,454.11

Finding the Fourth Proportional to 79,415.13, 119,693.51 and 68,454.11

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Solution

The fourth proportional to 79,415.13, 119,693.51 and 68,454.11 is: 103,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,415.13 : 119,693.51 = 68,454.11 : x
  2. Step 2: Convert to fraction form
    79,415.13/119,693.51 = 68,454.11/x
  3. Step 3: Cross multiply
    79,415.13x = 119,693.51 × 68,454.11
  4. Step 4: Simplify right side
    79,415.13x = 8,193,512,272.49
  5. Step 5: Solve for x
    x = 8,193,512,272.49/79,415.13
  6. Step 6: Final answer
    x = 103,173.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.