Home / 289,514.47-434,271.88-79,136.59

Finding the Fourth Proportional to 289,514.47, 434,271.88 and 79,136.59

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Solution

The fourth proportional to 289,514.47, 434,271.88 and 79,136.59 is: 118,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,514.47 : 434,271.88 = 79,136.59 : x
  2. Step 2: Convert to fraction form
    289,514.47/434,271.88 = 79,136.59/x
  3. Step 3: Cross multiply
    289,514.47x = 434,271.88 × 79,136.59
  4. Step 4: Simplify right side
    289,514.47x = 34,366,795,716.09
  5. Step 5: Solve for x
    x = 34,366,795,716.09/289,514.47
  6. Step 6: Final answer
    x = 118,704.93

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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.