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Finding the Fourth Proportional to 189,374.33, 261,342 and 104,496.86

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Solution

The fourth proportional to 189,374.33, 261,342 and 104,496.86 is: 144,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,374.33 : 261,342 = 104,496.86 : x
  2. Step 2: Convert to fraction form
    189,374.33/261,342 = 104,496.86/x
  3. Step 3: Cross multiply
    189,374.33x = 261,342 × 104,496.86
  4. Step 4: Simplify right side
    189,374.33x = 27,309,418,386.12
  5. Step 5: Solve for x
    x = 27,309,418,386.12/189,374.33
  6. Step 6: Final answer
    x = 144,208.66

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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.