Home / 187,431.10-258,659.49-106,866.25

Finding the Fourth Proportional to 187,431.10, 258,659.49 and 106,866.25

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Solution

The fourth proportional to 187,431.10, 258,659.49 and 106,866.25 is: 147,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.10 : 258,659.49 = 106,866.25 : x
  2. Step 2: Convert to fraction form
    187,431.10/258,659.49 = 106,866.25/x
  3. Step 3: Cross multiply
    187,431.10x = 258,659.49 × 106,866.25
  4. Step 4: Simplify right side
    187,431.10x = 27,641,969,723.21
  5. Step 5: Solve for x
    x = 27,641,969,723.21/187,431.10
  6. Step 6: Final answer
    x = 147,478.03

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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.