Home / 168,930.81-253,219.68-56,518.55

Finding the Fourth Proportional to 168,930.81, 253,219.68 and 56,518.55

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Solution

The fourth proportional to 168,930.81, 253,219.68 and 56,518.55 is: 84,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,930.81 : 253,219.68 = 56,518.55 : x
  2. Step 2: Convert to fraction form
    168,930.81/253,219.68 = 56,518.55/x
  3. Step 3: Cross multiply
    168,930.81x = 253,219.68 × 56,518.55
  4. Step 4: Simplify right side
    168,930.81x = 14,311,607,878.97
  5. Step 5: Solve for x
    x = 14,311,607,878.97/168,930.81
  6. Step 6: Final answer
    x = 84,718.75

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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.