Home / 105,190.33-145,175.07-59,251.47

Finding the Fourth Proportional to 105,190.33, 145,175.07 and 59,251.47

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Solution

The fourth proportional to 105,190.33, 145,175.07 and 59,251.47 is: 81,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,190.33 : 145,175.07 = 59,251.47 : x
  2. Step 2: Convert to fraction form
    105,190.33/145,175.07 = 59,251.47/x
  3. Step 3: Cross multiply
    105,190.33x = 145,175.07 × 59,251.47
  4. Step 4: Simplify right side
    105,190.33x = 8,601,836,304.85
  5. Step 5: Solve for x
    x = 8,601,836,304.85/105,190.33
  6. Step 6: Final answer
    x = 81,774.02

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1.5x scale

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.