Home / 187,711.85-259,048.80-102,828.92

Finding the Fourth Proportional to 187,711.85, 259,048.80 and 102,828.92

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Solution

The fourth proportional to 187,711.85, 259,048.80 and 102,828.92 is: 141,907.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,711.85 : 259,048.80 = 102,828.92 : x
  2. Step 2: Convert to fraction form
    187,711.85/259,048.80 = 102,828.92/x
  3. Step 3: Cross multiply
    187,711.85x = 259,048.80 × 102,828.92
  4. Step 4: Simplify right side
    187,711.85x = 26,637,707,036.05
  5. Step 5: Solve for x
    x = 26,637,707,036.05/187,711.85
  6. Step 6: Final answer
    x = 141,907.44

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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.