Home / 77,237.55-115,856.33-68,926.95

Finding the Fourth Proportional to 77,237.55, 115,856.33 and 68,926.95

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Solution

The fourth proportional to 77,237.55, 115,856.33 and 68,926.95 is: 103,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,237.55 : 115,856.33 = 68,926.95 : x
  2. Step 2: Convert to fraction form
    77,237.55/115,856.33 = 68,926.95/x
  3. Step 3: Cross multiply
    77,237.55x = 115,856.33 × 68,926.95
  4. Step 4: Simplify right side
    77,237.55x = 7,985,623,120.46
  5. Step 5: Solve for x
    x = 7,985,623,120.46/77,237.55
  6. Step 6: Final answer
    x = 103,390.43

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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.