Home / 187,118.40-258,211-106,554.16

Finding the Fourth Proportional to 187,118.40, 258,211 and 106,554.16

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Solution

The fourth proportional to 187,118.40, 258,211 and 106,554.16 is: 147,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,118.40 : 258,211 = 106,554.16 : x
  2. Step 2: Convert to fraction form
    187,118.40/258,211 = 106,554.16/x
  3. Step 3: Cross multiply
    187,118.40x = 258,211 × 106,554.16
  4. Step 4: Simplify right side
    187,118.40x = 27,513,456,207.76
  5. Step 5: Solve for x
    x = 27,513,456,207.76/187,118.40
  6. Step 6: Final answer
    x = 147,037.68

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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.