Home / 91,858.90-137,788.35-63,865.30

Finding the Fourth Proportional to 91,858.90, 137,788.35 and 63,865.30

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Solution

The fourth proportional to 91,858.90, 137,788.35 and 63,865.30 is: 95,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,858.90 : 137,788.35 = 63,865.30 : x
  2. Step 2: Convert to fraction form
    91,858.90/137,788.35 = 63,865.30/x
  3. Step 3: Cross multiply
    91,858.90x = 137,788.35 × 63,865.30
  4. Step 4: Simplify right side
    91,858.90x = 8,799,894,309.26
  5. Step 5: Solve for x
    x = 8,799,894,309.26/91,858.90
  6. Step 6: Final answer
    x = 95,797.95

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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.