Home / 187,803.20-259,162.56-102,918.72

Finding the Fourth Proportional to 187,803.20, 259,162.56 and 102,918.72

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Solution

The fourth proportional to 187,803.20, 259,162.56 and 102,918.72 is: 142,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,803.20 : 259,162.56 = 102,918.72 : x
  2. Step 2: Convert to fraction form
    187,803.20/259,162.56 = 102,918.72/x
  3. Step 3: Cross multiply
    187,803.20x = 259,162.56 × 102,918.72
  4. Step 4: Simplify right side
    187,803.20x = 26,672,678,947.12
  5. Step 5: Solve for x
    x = 26,672,678,947.12/187,803.20
  6. Step 6: Final answer
    x = 142,024.62

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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.