Home / 187,913.52-259,315.38-107,339.40

Finding the Fourth Proportional to 187,913.52, 259,315.38 and 107,339.40

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Solution

The fourth proportional to 187,913.52, 259,315.38 and 107,339.40 is: 148,125.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,913.52 : 259,315.38 = 107,339.40 : x
  2. Step 2: Convert to fraction form
    187,913.52/259,315.38 = 107,339.40/x
  3. Step 3: Cross multiply
    187,913.52x = 259,315.38 × 107,339.40
  4. Step 4: Simplify right side
    187,913.52x = 27,834,757,299.97
  5. Step 5: Solve for x
    x = 27,834,757,299.97/187,913.52
  6. Step 6: Final answer
    x = 148,125.36

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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.