Home / 212,710.74-319,262.94-107,603.52

Finding the Fourth Proportional to 212,710.74, 319,262.94 and 107,603.52

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Solution

The fourth proportional to 212,710.74, 319,262.94 and 107,603.52 is: 161,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,710.74 : 319,262.94 = 107,603.52 : x
  2. Step 2: Convert to fraction form
    212,710.74/319,262.94 = 107,603.52/x
  3. Step 3: Cross multiply
    212,710.74x = 319,262.94 × 107,603.52
  4. Step 4: Simplify right side
    212,710.74x = 34,353,816,149.55
  5. Step 5: Solve for x
    x = 34,353,816,149.55/212,710.74
  6. Step 6: Final answer
    x = 161,504.85

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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.