Home / 211,818.25-317,858.69-123,113.53

Finding the Fourth Proportional to 211,818.25, 317,858.69 and 123,113.53

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Solution

The fourth proportional to 211,818.25, 317,858.69 and 123,113.53 is: 184,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,818.25 : 317,858.69 = 123,113.53 : x
  2. Step 2: Convert to fraction form
    211,818.25/317,858.69 = 123,113.53/x
  3. Step 3: Cross multiply
    211,818.25x = 317,858.69 × 123,113.53
  4. Step 4: Simplify right side
    211,818.25x = 39,132,705,367.08
  5. Step 5: Solve for x
    x = 39,132,705,367.08/211,818.25
  6. Step 6: Final answer
    x = 184,746.62

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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.