Home / 251,336.10-346,839.90-138,156.42

Finding the Fourth Proportional to 251,336.10, 346,839.90 and 138,156.42

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Solution

The fourth proportional to 251,336.10, 346,839.90 and 138,156.42 is: 190,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,336.10 : 346,839.90 = 138,156.42 : x
  2. Step 2: Convert to fraction form
    251,336.10/346,839.90 = 138,156.42/x
  3. Step 3: Cross multiply
    251,336.10x = 346,839.90 × 138,156.42
  4. Step 4: Simplify right side
    251,336.10x = 47,918,158,897.16
  5. Step 5: Solve for x
    x = 47,918,158,897.16/251,336.10
  6. Step 6: Final answer
    x = 190,653.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.