Home / 189,449.69-261,434.06-112,929.33

Finding the Fourth Proportional to 189,449.69, 261,434.06 and 112,929.33

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Solution

The fourth proportional to 189,449.69, 261,434.06 and 112,929.33 is: 155,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,449.69 : 261,434.06 = 112,929.33 : x
  2. Step 2: Convert to fraction form
    189,449.69/261,434.06 = 112,929.33/x
  3. Step 3: Cross multiply
    189,449.69x = 261,434.06 × 112,929.33
  4. Step 4: Simplify right side
    189,449.69x = 29,523,573,234.98
  5. Step 5: Solve for x
    x = 29,523,573,234.98/189,449.69
  6. Step 6: Final answer
    x = 155,838.59

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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.