Home / 187,187.88-258,331.76-105,536.28

Finding the Fourth Proportional to 187,187.88, 258,331.76 and 105,536.28

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Solution

The fourth proportional to 187,187.88, 258,331.76 and 105,536.28 is: 145,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,187.88 : 258,331.76 = 105,536.28 : x
  2. Step 2: Convert to fraction form
    187,187.88/258,331.76 = 105,536.28/x
  3. Step 3: Cross multiply
    187,187.88x = 258,331.76 × 105,536.28
  4. Step 4: Simplify right side
    187,187.88x = 27,263,372,956.25
  5. Step 5: Solve for x
    x = 27,263,372,956.25/187,187.88
  6. Step 6: Final answer
    x = 145,647.11

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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.