Home / 187,091.84-258,110.28-138,150.72

Finding the Fourth Proportional to 187,091.84, 258,110.28 and 138,150.72

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Solution

The fourth proportional to 187,091.84, 258,110.28 and 138,150.72 is: 190,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,091.84 : 258,110.28 = 138,150.72 : x
  2. Step 2: Convert to fraction form
    187,091.84/258,110.28 = 138,150.72/x
  3. Step 3: Cross multiply
    187,091.84x = 258,110.28 × 138,150.72
  4. Step 4: Simplify right side
    187,091.84x = 35,658,121,021.40
  5. Step 5: Solve for x
    x = 35,658,121,021.40/187,091.84
  6. Step 6: Final answer
    x = 190,591.54

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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.