Home / 187,689.02-259,014.24-102,800.61

Finding the Fourth Proportional to 187,689.02, 259,014.24 and 102,800.61

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Solution

The fourth proportional to 187,689.02, 259,014.24 and 102,800.61 is: 141,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,689.02 : 259,014.24 = 102,800.61 : x
  2. Step 2: Convert to fraction form
    187,689.02/259,014.24 = 102,800.61/x
  3. Step 3: Cross multiply
    187,689.02x = 259,014.24 × 102,800.61
  4. Step 4: Simplify right side
    187,689.02x = 26,626,821,870.69
  5. Step 5: Solve for x
    x = 26,626,821,870.69/187,689.02
  6. Step 6: Final answer
    x = 141,866.70

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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.