Home / 187,971.75-259,401.15-103,089.15

Finding the Fourth Proportional to 187,971.75, 259,401.15 and 103,089.15

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Solution

The fourth proportional to 187,971.75, 259,401.15 and 103,089.15 is: 142,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,971.75 : 259,401.15 = 103,089.15 : x
  2. Step 2: Convert to fraction form
    187,971.75/259,401.15 = 103,089.15/x
  3. Step 3: Cross multiply
    187,971.75x = 259,401.15 × 103,089.15
  4. Step 4: Simplify right side
    187,971.75x = 26,741,444,062.52
  5. Step 5: Solve for x
    x = 26,741,444,062.52/187,971.75
  6. Step 6: Final answer
    x = 142,263.10

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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.