Home / 125,834.80-188,752.20-120,002.80

Finding the Fourth Proportional to 125,834.80, 188,752.20 and 120,002.80

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Solution

The fourth proportional to 125,834.80, 188,752.20 and 120,002.80 is: 180,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,834.80 : 188,752.20 = 120,002.80 : x
  2. Step 2: Convert to fraction form
    125,834.80/188,752.20 = 120,002.80/x
  3. Step 3: Cross multiply
    125,834.80x = 188,752.20 × 120,002.80
  4. Step 4: Simplify right side
    125,834.80x = 22,650,792,506.16
  5. Step 5: Solve for x
    x = 22,650,792,506.16/125,834.80
  6. Step 6: Final answer
    x = 180,004.20

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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.