Home / 212,142.84-292,819.15-126,162.28

Finding the Fourth Proportional to 212,142.84, 292,819.15 and 126,162.28

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Solution

The fourth proportional to 212,142.84, 292,819.15 and 126,162.28 is: 174,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,142.84 : 292,819.15 = 126,162.28 : x
  2. Step 2: Convert to fraction form
    212,142.84/292,819.15 = 126,162.28/x
  3. Step 3: Cross multiply
    212,142.84x = 292,819.15 × 126,162.28
  4. Step 4: Simplify right side
    212,142.84x = 36,942,731,591.66
  5. Step 5: Solve for x
    x = 36,942,731,591.66/212,142.84
  6. Step 6: Final answer
    x = 174,140.84

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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.