Home / 153,136.53-229,505.22-78,193.52

Finding the Fourth Proportional to 153,136.53, 229,505.22 and 78,193.52

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Solution

The fourth proportional to 153,136.53, 229,505.22 and 78,193.52 is: 117,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,136.53 : 229,505.22 = 78,193.52 : x
  2. Step 2: Convert to fraction form
    153,136.53/229,505.22 = 78,193.52/x
  3. Step 3: Cross multiply
    153,136.53x = 229,505.22 × 78,193.52
  4. Step 4: Simplify right side
    153,136.53x = 17,945,819,862.65
  5. Step 5: Solve for x
    x = 17,945,819,862.65/153,136.53
  6. Step 6: Final answer
    x = 117,188.37

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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.