Home / 91,792.45-137,421.23-68,204.54

Finding the Fourth Proportional to 91,792.45, 137,421.23 and 68,204.54

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Solution

The fourth proportional to 91,792.45, 137,421.23 and 68,204.54 is: 102,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,792.45 : 137,421.23 = 68,204.54 : x
  2. Step 2: Convert to fraction form
    91,792.45/137,421.23 = 68,204.54/x
  3. Step 3: Cross multiply
    91,792.45x = 137,421.23 × 68,204.54
  4. Step 4: Simplify right side
    91,792.45x = 9,372,750,750.26
  5. Step 5: Solve for x
    x = 9,372,750,750.26/91,792.45
  6. Step 6: Final answer
    x = 102,108.08

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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.