Home / 157,375.14-236,136.41-78,495.45

Finding the Fourth Proportional to 157,375.14, 236,136.41 and 78,495.45

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Solution

The fourth proportional to 157,375.14, 236,136.41 and 78,495.45 is: 117,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,375.14 : 236,136.41 = 78,495.45 : x
  2. Step 2: Convert to fraction form
    157,375.14/236,136.41 = 78,495.45/x
  3. Step 3: Cross multiply
    157,375.14x = 236,136.41 × 78,495.45
  4. Step 4: Simplify right side
    157,375.14x = 18,535,633,764.33
  5. Step 5: Solve for x
    x = 18,535,633,764.33/157,375.14
  6. Step 6: Final answer
    x = 117,779.94

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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.