Home / 212,853.72-319,188.04-61,017.36

Finding the Fourth Proportional to 212,853.72, 319,188.04 and 61,017.36

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Solution

The fourth proportional to 212,853.72, 319,188.04 and 61,017.36 is: 91,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,853.72 : 319,188.04 = 61,017.36 : x
  2. Step 2: Convert to fraction form
    212,853.72/319,188.04 = 61,017.36/x
  3. Step 3: Cross multiply
    212,853.72x = 319,188.04 × 61,017.36
  4. Step 4: Simplify right side
    212,853.72x = 19,476,011,544.37
  5. Step 5: Solve for x
    x = 19,476,011,544.37/212,853.72
  6. Step 6: Final answer
    x = 91,499.51

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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.