Home / 187,856.69-259,243.14-112,405.19

Finding the Fourth Proportional to 187,856.69, 259,243.14 and 112,405.19

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Solution

The fourth proportional to 187,856.69, 259,243.14 and 112,405.19 is: 155,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,856.69 : 259,243.14 = 112,405.19 : x
  2. Step 2: Convert to fraction form
    187,856.69/259,243.14 = 112,405.19/x
  3. Step 3: Cross multiply
    187,856.69x = 259,243.14 × 112,405.19
  4. Step 4: Simplify right side
    187,856.69x = 29,140,274,407.90
  5. Step 5: Solve for x
    x = 29,140,274,407.90/187,856.69
  6. Step 6: Final answer
    x = 155,119.71

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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.