Home / 99,819.42-137,748.99-56,797.98

Finding the Fourth Proportional to 99,819.42, 137,748.99 and 56,797.98

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Solution

The fourth proportional to 99,819.42, 137,748.99 and 56,797.98 is: 78,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,819.42 : 137,748.99 = 56,797.98 : x
  2. Step 2: Convert to fraction form
    99,819.42/137,748.99 = 56,797.98/x
  3. Step 3: Cross multiply
    99,819.42x = 137,748.99 × 56,797.98
  4. Step 4: Simplify right side
    99,819.42x = 7,823,864,095.05
  5. Step 5: Solve for x
    x = 7,823,864,095.05/99,819.42
  6. Step 6: Final answer
    x = 78,380.18

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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.