Home / 319,427.07-479,036.96-106,137.71

Finding the Fourth Proportional to 319,427.07, 479,036.96 and 106,137.71

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Solution

The fourth proportional to 319,427.07, 479,036.96 and 106,137.71 is: 159,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,427.07 : 479,036.96 = 106,137.71 : x
  2. Step 2: Convert to fraction form
    319,427.07/479,036.96 = 106,137.71/x
  3. Step 3: Cross multiply
    319,427.07x = 479,036.96 × 106,137.71
  4. Step 4: Simplify right side
    319,427.07x = 50,843,885,939.76
  5. Step 5: Solve for x
    x = 50,843,885,939.76/319,427.07
  6. Step 6: Final answer
    x = 159,172.13

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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.