Home / 212,916.33-319,319.96-63,121.59

Finding the Fourth Proportional to 212,916.33, 319,319.96 and 63,121.59

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Solution

The fourth proportional to 212,916.33, 319,319.96 and 63,121.59 is: 94,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,916.33 : 319,319.96 = 63,121.59 : x
  2. Step 2: Convert to fraction form
    212,916.33/319,319.96 = 63,121.59/x
  3. Step 3: Cross multiply
    212,916.33x = 319,319.96 × 63,121.59
  4. Step 4: Simplify right side
    212,916.33x = 20,155,983,278.33
  5. Step 5: Solve for x
    x = 20,155,983,278.33/212,916.33
  6. Step 6: Final answer
    x = 94,666.22

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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.