Home / 187,019.60-258,083.57-105,348.11

Finding the Fourth Proportional to 187,019.60, 258,083.57 and 105,348.11

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Solution

The fourth proportional to 187,019.60, 258,083.57 and 105,348.11 is: 145,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,019.60 : 258,083.57 = 105,348.11 : x
  2. Step 2: Convert to fraction form
    187,019.60/258,083.57 = 105,348.11/x
  3. Step 3: Cross multiply
    187,019.60x = 258,083.57 × 105,348.11
  4. Step 4: Simplify right side
    187,019.60x = 27,188,615,794.81
  5. Step 5: Solve for x
    x = 27,188,615,794.81/187,019.60
  6. Step 6: Final answer
    x = 145,378.43

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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.