Home / 213,165.36-319,672.98-70,972.02

Finding the Fourth Proportional to 213,165.36, 319,672.98 and 70,972.02

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Solution

The fourth proportional to 213,165.36, 319,672.98 and 70,972.02 is: 106,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,165.36 : 319,672.98 = 70,972.02 : x
  2. Step 2: Convert to fraction form
    213,165.36/319,672.98 = 70,972.02/x
  3. Step 3: Cross multiply
    213,165.36x = 319,672.98 × 70,972.02
  4. Step 4: Simplify right side
    213,165.36x = 22,687,837,130.02
  5. Step 5: Solve for x
    x = 22,687,837,130.02/213,165.36
  6. Step 6: Final answer
    x = 106,433.04

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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.