Home / 319,427.83-479,038.08-106,138.46

Finding the Fourth Proportional to 319,427.83, 479,038.08 and 106,138.46

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Solution

The fourth proportional to 319,427.83, 479,038.08 and 106,138.46 is: 159,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,427.83 : 479,038.08 = 106,138.46 : x
  2. Step 2: Convert to fraction form
    319,427.83/479,038.08 = 106,138.46/x
  3. Step 3: Cross multiply
    319,427.83x = 479,038.08 × 106,138.46
  4. Step 4: Simplify right side
    319,427.83x = 50,844,364,092.56
  5. Step 5: Solve for x
    x = 50,844,364,092.56/319,427.83
  6. Step 6: Final answer
    x = 159,173.24

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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.