Home / 212,916.08-319,319.61-63,121.34

Finding the Fourth Proportional to 212,916.08, 319,319.61 and 63,121.34

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Solution

The fourth proportional to 212,916.08, 319,319.61 and 63,121.34 is: 94,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,916.08 : 319,319.61 = 63,121.34 : x
  2. Step 2: Convert to fraction form
    212,916.08/319,319.61 = 63,121.34/x
  3. Step 3: Cross multiply
    212,916.08x = 319,319.61 × 63,121.34
  4. Step 4: Simplify right side
    212,916.08x = 20,155,881,671.48
  5. Step 5: Solve for x
    x = 20,155,881,671.48/212,916.08
  6. Step 6: Final answer
    x = 94,665.85

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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.