Home / 187,874.16-259,263.36-102,991.92

Finding the Fourth Proportional to 187,874.16, 259,263.36 and 102,991.92

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Solution

The fourth proportional to 187,874.16, 259,263.36 and 102,991.92 is: 142,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,874.16 : 259,263.36 = 102,991.92 : x
  2. Step 2: Convert to fraction form
    187,874.16/259,263.36 = 102,991.92/x
  3. Step 3: Cross multiply
    187,874.16x = 259,263.36 × 102,991.92
  4. Step 4: Simplify right side
    187,874.16x = 26,702,031,232.05
  5. Step 5: Solve for x
    x = 26,702,031,232.05/187,874.16
  6. Step 6: Final answer
    x = 142,127.22

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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.