Home / 157,074.54-235,687.41-78,195.66

Finding the Fourth Proportional to 157,074.54, 235,687.41 and 78,195.66

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Solution

The fourth proportional to 157,074.54, 235,687.41 and 78,195.66 is: 117,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,074.54 : 235,687.41 = 78,195.66 : x
  2. Step 2: Convert to fraction form
    157,074.54/235,687.41 = 78,195.66/x
  3. Step 3: Cross multiply
    157,074.54x = 235,687.41 × 78,195.66
  4. Step 4: Simplify right side
    157,074.54x = 18,429,732,578.64
  5. Step 5: Solve for x
    x = 18,429,732,578.64/157,074.54
  6. Step 6: Final answer
    x = 117,331.13

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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.