Home / 187,525.76-258,785.64-102,643.28

Finding the Fourth Proportional to 187,525.76, 258,785.64 and 102,643.28

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Solution

The fourth proportional to 187,525.76, 258,785.64 and 102,643.28 is: 141,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,525.76 : 258,785.64 = 102,643.28 : x
  2. Step 2: Convert to fraction form
    187,525.76/258,785.64 = 102,643.28/x
  3. Step 3: Cross multiply
    187,525.76x = 258,785.64 × 102,643.28
  4. Step 4: Simplify right side
    187,525.76x = 26,562,606,906.50
  5. Step 5: Solve for x
    x = 26,562,606,906.50/187,525.76
  6. Step 6: Final answer
    x = 141,647.78

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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.