Home / 187,664.34-258,983.01-102,786.06

Finding the Fourth Proportional to 187,664.34, 258,983.01 and 102,786.06

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Solution

The fourth proportional to 187,664.34, 258,983.01 and 102,786.06 is: 141,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,664.34 : 258,983.01 = 102,786.06 : x
  2. Step 2: Convert to fraction form
    187,664.34/258,983.01 = 102,786.06/x
  3. Step 3: Cross multiply
    187,664.34x = 258,983.01 × 102,786.06
  4. Step 4: Simplify right side
    187,664.34x = 26,619,843,204.84
  5. Step 5: Solve for x
    x = 26,619,843,204.84/187,664.34
  6. Step 6: Final answer
    x = 141,848.17

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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.