Home / 142,411.96-196,524.66-78,752.44

Finding the Fourth Proportional to 142,411.96, 196,524.66 and 78,752.44

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Solution

The fourth proportional to 142,411.96, 196,524.66 and 78,752.44 is: 108,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,411.96 : 196,524.66 = 78,752.44 : x
  2. Step 2: Convert to fraction form
    142,411.96/196,524.66 = 78,752.44/x
  3. Step 3: Cross multiply
    142,411.96x = 196,524.66 × 78,752.44
  4. Step 4: Simplify right side
    142,411.96x = 15,476,796,495.17
  5. Step 5: Solve for x
    x = 15,476,796,495.17/142,411.96
  6. Step 6: Final answer
    x = 108,676.24

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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.