Home / 212,744.36-319,349.90-88,172.84

Finding the Fourth Proportional to 212,744.36, 319,349.90 and 88,172.84

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Solution

The fourth proportional to 212,744.36, 319,349.90 and 88,172.84 is: 132,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,744.36 : 319,349.90 = 88,172.84 : x
  2. Step 2: Convert to fraction form
    212,744.36/319,349.90 = 88,172.84/x
  3. Step 3: Cross multiply
    212,744.36x = 319,349.90 × 88,172.84
  4. Step 4: Simplify right side
    212,744.36x = 28,157,987,636.72
  5. Step 5: Solve for x
    x = 28,157,987,636.72/212,744.36
  6. Step 6: Final answer
    x = 132,355.98

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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.