Home / 99,130.57-148,696.07-69,680.19

Finding the Fourth Proportional to 99,130.57, 148,696.07 and 69,680.19

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Solution

The fourth proportional to 99,130.57, 148,696.07 and 69,680.19 is: 104,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.57 : 148,696.07 = 69,680.19 : x
  2. Step 2: Convert to fraction form
    99,130.57/148,696.07 = 69,680.19/x
  3. Step 3: Cross multiply
    99,130.57x = 148,696.07 × 69,680.19
  4. Step 4: Simplify right side
    99,130.57x = 10,361,170,409.85
  5. Step 5: Solve for x
    x = 10,361,170,409.85/99,130.57
  6. Step 6: Final answer
    x = 104,520.44

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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.