Home / 319,721.12-479,477.84-106,431.74

Finding the Fourth Proportional to 319,721.12, 479,477.84 and 106,431.74

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Solution

The fourth proportional to 319,721.12, 479,477.84 and 106,431.74 is: 159,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,721.12 : 479,477.84 = 106,431.74 : x
  2. Step 2: Convert to fraction form
    319,721.12/479,477.84 = 106,431.74/x
  3. Step 3: Cross multiply
    319,721.12x = 479,477.84 × 106,431.74
  4. Step 4: Simplify right side
    319,721.12x = 51,031,658,671.33
  5. Step 5: Solve for x
    x = 51,031,658,671.33/319,721.12
  6. Step 6: Final answer
    x = 159,613.04

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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.