Home / 212,161.02-318,217.77-54,393.18

Finding the Fourth Proportional to 212,161.02, 318,217.77 and 54,393.18

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Solution

The fourth proportional to 212,161.02, 318,217.77 and 54,393.18 is: 81,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,161.02 : 318,217.77 = 54,393.18 : x
  2. Step 2: Convert to fraction form
    212,161.02/318,217.77 = 54,393.18/x
  3. Step 3: Cross multiply
    212,161.02x = 318,217.77 × 54,393.18
  4. Step 4: Simplify right side
    212,161.02x = 17,308,876,442.81
  5. Step 5: Solve for x
    x = 17,308,876,442.81/212,161.02
  6. Step 6: Final answer
    x = 81,583.68

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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.