Home / 187,686.56-259,013.76-102,808.40

Finding the Fourth Proportional to 187,686.56, 259,013.76 and 102,808.40

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Solution

The fourth proportional to 187,686.56, 259,013.76 and 102,808.40 is: 141,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,686.56 : 259,013.76 = 102,808.40 : x
  2. Step 2: Convert to fraction form
    187,686.56/259,013.76 = 102,808.40/x
  3. Step 3: Cross multiply
    187,686.56x = 259,013.76 × 102,808.40
  4. Step 4: Simplify right side
    187,686.56x = 26,628,790,243.58
  5. Step 5: Solve for x
    x = 26,628,790,243.58/187,686.56
  6. Step 6: Final answer
    x = 141,879.05

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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.