Home / 212,949.25-319,354.74-70,756.34

Finding the Fourth Proportional to 212,949.25, 319,354.74 and 70,756.34

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Solution

The fourth proportional to 212,949.25, 319,354.74 and 70,756.34 is: 106,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949.25 : 319,354.74 = 70,756.34 : x
  2. Step 2: Convert to fraction form
    212,949.25/319,354.74 = 70,756.34/x
  3. Step 3: Cross multiply
    212,949.25x = 319,354.74 × 70,756.34
  4. Step 4: Simplify right side
    212,949.25x = 22,596,372,888.69
  5. Step 5: Solve for x
    x = 22,596,372,888.69/212,949.25
  6. Step 6: Final answer
    x = 106,111.54

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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.