Home / 188,354.22-259,928.76-103,471.20

Finding the Fourth Proportional to 188,354.22, 259,928.76 and 103,471.20

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Solution

The fourth proportional to 188,354.22, 259,928.76 and 103,471.20 is: 142,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,354.22 : 259,928.76 = 103,471.20 : x
  2. Step 2: Convert to fraction form
    188,354.22/259,928.76 = 103,471.20/x
  3. Step 3: Cross multiply
    188,354.22x = 259,928.76 × 103,471.20
  4. Step 4: Simplify right side
    188,354.22x = 26,895,140,711.71
  5. Step 5: Solve for x
    x = 26,895,140,711.71/188,354.22
  6. Step 6: Final answer
    x = 142,790.22

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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.