Home / 212,827.68-319,248.18-79,682.58

Finding the Fourth Proportional to 212,827.68, 319,248.18 and 79,682.58

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Solution

The fourth proportional to 212,827.68, 319,248.18 and 79,682.58 is: 119,526.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,827.68 : 319,248.18 = 79,682.58 : x
  2. Step 2: Convert to fraction form
    212,827.68/319,248.18 = 79,682.58/x
  3. Step 3: Cross multiply
    212,827.68x = 319,248.18 × 79,682.58
  4. Step 4: Simplify right side
    212,827.68x = 25,438,518,642.70
  5. Step 5: Solve for x
    x = 25,438,518,642.70/212,827.68
  6. Step 6: Final answer
    x = 119,526.36

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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.