Home / 188,505.59-260,138-103,623.17

Finding the Fourth Proportional to 188,505.59, 260,138 and 103,623.17

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Solution

The fourth proportional to 188,505.59, 260,138 and 103,623.17 is: 143,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,505.59 : 260,138 = 103,623.17 : x
  2. Step 2: Convert to fraction form
    188,505.59/260,138 = 103,623.17/x
  3. Step 3: Cross multiply
    188,505.59x = 260,138 × 103,623.17
  4. Step 4: Simplify right side
    188,505.59x = 26,956,324,197.46
  5. Step 5: Solve for x
    x = 26,956,324,197.46/188,505.59
  6. Step 6: Final answer
    x = 143,000.13

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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.