Home / 187,891.20-259,284.24-103,005.36

Finding the Fourth Proportional to 187,891.20, 259,284.24 and 103,005.36

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Solution

The fourth proportional to 187,891.20, 259,284.24 and 103,005.36 is: 142,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,891.20 : 259,284.24 = 103,005.36 : x
  2. Step 2: Convert to fraction form
    187,891.20/259,284.24 = 103,005.36/x
  3. Step 3: Cross multiply
    187,891.20x = 259,284.24 × 103,005.36
  4. Step 4: Simplify right side
    187,891.20x = 26,707,666,483.53
  5. Step 5: Solve for x
    x = 26,707,666,483.53/187,891.20
  6. Step 6: Final answer
    x = 142,144.32

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1.5x scale

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.