Home / 91,867.69-137,672.07-73,064.35

Finding the Fourth Proportional to 91,867.69, 137,672.07 and 73,064.35

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Solution

The fourth proportional to 91,867.69, 137,672.07 and 73,064.35 is: 109,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,867.69 : 137,672.07 = 73,064.35 : x
  2. Step 2: Convert to fraction form
    91,867.69/137,672.07 = 73,064.35/x
  3. Step 3: Cross multiply
    91,867.69x = 137,672.07 × 73,064.35
  4. Step 4: Simplify right side
    91,867.69x = 10,058,920,307.70
  5. Step 5: Solve for x
    x = 10,058,920,307.70/91,867.69
  6. Step 6: Final answer
    x = 109,493.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.