Home / 187,156.96-258,288.88-105,505.36

Finding the Fourth Proportional to 187,156.96, 258,288.88 and 105,505.36

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Solution

The fourth proportional to 187,156.96, 258,288.88 and 105,505.36 is: 145,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,156.96 : 258,288.88 = 105,505.36 : x
  2. Step 2: Convert to fraction form
    187,156.96/258,288.88 = 105,505.36/x
  3. Step 3: Cross multiply
    187,156.96x = 258,288.88 × 105,505.36
  4. Step 4: Simplify right side
    187,156.96x = 27,250,861,268.40
  5. Step 5: Solve for x
    x = 27,250,861,268.40/187,156.96
  6. Step 6: Final answer
    x = 145,604.32

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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.