Home / 187,537.28-258,795-106,990.88

Finding the Fourth Proportional to 187,537.28, 258,795 and 106,990.88

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Solution

The fourth proportional to 187,537.28, 258,795 and 106,990.88 is: 147,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,537.28 : 258,795 = 106,990.88 : x
  2. Step 2: Convert to fraction form
    187,537.28/258,795 = 106,990.88/x
  3. Step 3: Cross multiply
    187,537.28x = 258,795 × 106,990.88
  4. Step 4: Simplify right side
    187,537.28x = 27,688,703,495.63
  5. Step 5: Solve for x
    x = 27,688,703,495.63/187,537.28
  6. Step 6: Final answer
    x = 147,643.73

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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.