Home / 189,302.26-261,242.05-103,262.69

Finding the Fourth Proportional to 189,302.26, 261,242.05 and 103,262.69

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Solution

The fourth proportional to 189,302.26, 261,242.05 and 103,262.69 is: 142,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,302.26 : 261,242.05 = 103,262.69 : x
  2. Step 2: Convert to fraction form
    189,302.26/261,242.05 = 103,262.69/x
  3. Step 3: Cross multiply
    189,302.26x = 261,242.05 × 103,262.69
  4. Step 4: Simplify right side
    189,302.26x = 26,976,557,219.06
  5. Step 5: Solve for x
    x = 26,976,557,219.06/189,302.26
  6. Step 6: Final answer
    x = 142,505.20

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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.