Home / 99,329.48-148,806.46-76,878.57

Finding the Fourth Proportional to 99,329.48, 148,806.46 and 76,878.57

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Solution

The fourth proportional to 99,329.48, 148,806.46 and 76,878.57 is: 115,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,329.48 : 148,806.46 = 76,878.57 : x
  2. Step 2: Convert to fraction form
    99,329.48/148,806.46 = 76,878.57/x
  3. Step 3: Cross multiply
    99,329.48x = 148,806.46 × 76,878.57
  4. Step 4: Simplify right side
    99,329.48x = 11,440,027,851.56
  5. Step 5: Solve for x
    x = 11,440,027,851.56/99,329.48
  6. Step 6: Final answer
    x = 115,172.53

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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.