Home / 157,741.36-236,415.19-78,878.14

Finding the Fourth Proportional to 157,741.36, 236,415.19 and 78,878.14

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Solution

The fourth proportional to 157,741.36, 236,415.19 and 78,878.14 is: 118,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,741.36 : 236,415.19 = 78,878.14 : x
  2. Step 2: Convert to fraction form
    157,741.36/236,415.19 = 78,878.14/x
  3. Step 3: Cross multiply
    157,741.36x = 236,415.19 × 78,878.14
  4. Step 4: Simplify right side
    157,741.36x = 18,647,990,454.95
  5. Step 5: Solve for x
    x = 18,647,990,454.95/157,741.36
  6. Step 6: Final answer
    x = 118,218.78

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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.