Home / 92,774.48-138,986.76-71,895.92

Finding the Fourth Proportional to 92,774.48, 138,986.76 and 71,895.92

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Solution

The fourth proportional to 92,774.48, 138,986.76 and 71,895.92 is: 107,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,774.48 : 138,986.76 = 71,895.92 : x
  2. Step 2: Convert to fraction form
    92,774.48/138,986.76 = 71,895.92/x
  3. Step 3: Cross multiply
    92,774.48x = 138,986.76 × 71,895.92
  4. Step 4: Simplify right side
    92,774.48x = 9,992,580,978.02
  5. Step 5: Solve for x
    x = 9,992,580,978.02/92,774.48
  6. Step 6: Final answer
    x = 107,708.29

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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.