Home / 100,120.04-138,152.00-59,825.28

Finding the Fourth Proportional to 100,120.04, 138,152.00 and 59,825.28

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Solution

The fourth proportional to 100,120.04, 138,152.00 and 59,825.28 is: 82,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,120.04 : 138,152.00 = 59,825.28 : x
  2. Step 2: Convert to fraction form
    100,120.04/138,152.00 = 59,825.28/x
  3. Step 3: Cross multiply
    100,120.04x = 138,152.00 × 59,825.28
  4. Step 4: Simplify right side
    100,120.04x = 8,264,981,783.43
  5. Step 5: Solve for x
    x = 8,264,981,783.43/100,120.04
  6. Step 6: Final answer
    x = 82,550.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.