Home / 251,289.86-346,781.13-138,119.90

Finding the Fourth Proportional to 251,289.86, 346,781.13 and 138,119.90

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Solution

The fourth proportional to 251,289.86, 346,781.13 and 138,119.90 is: 190,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,289.86 : 346,781.13 = 138,119.90 : x
  2. Step 2: Convert to fraction form
    251,289.86/346,781.13 = 138,119.90/x
  3. Step 3: Cross multiply
    251,289.86x = 346,781.13 × 138,119.90
  4. Step 4: Simplify right side
    251,289.86x = 47,897,374,997.49
  5. Step 5: Solve for x
    x = 47,897,374,997.49/251,289.86
  6. Step 6: Final answer
    x = 190,606.08

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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.