Home / 187,821.24-259,192.80-101,782.61

Finding the Fourth Proportional to 187,821.24, 259,192.80 and 101,782.61

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Solution

The fourth proportional to 187,821.24, 259,192.80 and 101,782.61 is: 140,459.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,821.24 : 259,192.80 = 101,782.61 : x
  2. Step 2: Convert to fraction form
    187,821.24/259,192.80 = 101,782.61/x
  3. Step 3: Cross multiply
    187,821.24x = 259,192.80 × 101,782.61
  4. Step 4: Simplify right side
    187,821.24x = 26,381,319,677.21
  5. Step 5: Solve for x
    x = 26,381,319,677.21/187,821.24
  6. Step 6: Final answer
    x = 140,459.72

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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.