Home / 187,648.90-258,891.21-107,018.46

Finding the Fourth Proportional to 187,648.90, 258,891.21 and 107,018.46

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Solution

The fourth proportional to 187,648.90, 258,891.21 and 107,018.46 is: 147,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,648.90 : 258,891.21 = 107,018.46 : x
  2. Step 2: Convert to fraction form
    187,648.90/258,891.21 = 107,018.46/x
  3. Step 3: Cross multiply
    187,648.90x = 258,891.21 × 107,018.46
  4. Step 4: Simplify right side
    187,648.90x = 27,706,138,601.74
  5. Step 5: Solve for x
    x = 27,706,138,601.74/187,648.90
  6. Step 6: Final answer
    x = 147,648.82

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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.