Home / 188,524.18-260,146.65-103,639.42

Finding the Fourth Proportional to 188,524.18, 260,146.65 and 103,639.42

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Solution

The fourth proportional to 188,524.18, 260,146.65 and 103,639.42 is: 143,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,524.18 : 260,146.65 = 103,639.42 : x
  2. Step 2: Convert to fraction form
    188,524.18/260,146.65 = 103,639.42/x
  3. Step 3: Cross multiply
    188,524.18x = 260,146.65 × 103,639.42
  4. Step 4: Simplify right side
    188,524.18x = 26,961,447,920.94
  5. Step 5: Solve for x
    x = 26,961,447,920.94/188,524.18
  6. Step 6: Final answer
    x = 143,013.21

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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.