Home / 187,648.13-258,984.65-107,079.05

Finding the Fourth Proportional to 187,648.13, 258,984.65 and 107,079.05

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Solution

The fourth proportional to 187,648.13, 258,984.65 and 107,079.05 is: 147,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,648.13 : 258,984.65 = 107,079.05 : x
  2. Step 2: Convert to fraction form
    187,648.13/258,984.65 = 107,079.05/x
  3. Step 3: Cross multiply
    187,648.13x = 258,984.65 × 107,079.05
  4. Step 4: Simplify right side
    187,648.13x = 27,731,830,286.58
  5. Step 5: Solve for x
    x = 27,731,830,286.58/187,648.13
  6. Step 6: Final answer
    x = 147,786.34

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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.