Home / 231,063.84-346,615.20-81,288.36

Finding the Fourth Proportional to 231,063.84, 346,615.20 and 81,288.36

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Solution

The fourth proportional to 231,063.84, 346,615.20 and 81,288.36 is: 121,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,063.84 : 346,615.20 = 81,288.36 : x
  2. Step 2: Convert to fraction form
    231,063.84/346,615.20 = 81,288.36/x
  3. Step 3: Cross multiply
    231,063.84x = 346,615.20 × 81,288.36
  4. Step 4: Simplify right side
    231,063.84x = 28,175,781,159.07
  5. Step 5: Solve for x
    x = 28,175,781,159.07/231,063.84
  6. Step 6: Final answer
    x = 121,939.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.