Home / 170,731.80-256,136.10-52,408.60

Finding the Fourth Proportional to 170,731.80, 256,136.10 and 52,408.60

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Solution

The fourth proportional to 170,731.80, 256,136.10 and 52,408.60 is: 78,624.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,731.80 : 256,136.10 = 52,408.60 : x
  2. Step 2: Convert to fraction form
    170,731.80/256,136.10 = 52,408.60/x
  3. Step 3: Cross multiply
    170,731.80x = 256,136.10 × 52,408.60
  4. Step 4: Simplify right side
    170,731.80x = 13,423,734,410.46
  5. Step 5: Solve for x
    x = 13,423,734,410.46/170,731.80
  6. Step 6: Final answer
    x = 78,624.69

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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.