Home / 141,406.68-195,136.20-77,743.98

Finding the Fourth Proportional to 141,406.68, 195,136.20 and 77,743.98

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Solution

The fourth proportional to 141,406.68, 195,136.20 and 77,743.98 is: 107,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.68 : 195,136.20 = 77,743.98 : x
  2. Step 2: Convert to fraction form
    141,406.68/195,136.20 = 77,743.98/x
  3. Step 3: Cross multiply
    141,406.68x = 195,136.20 × 77,743.98
  4. Step 4: Simplify right side
    141,406.68x = 15,170,664,830.08
  5. Step 5: Solve for x
    x = 15,170,664,830.08/141,406.68
  6. Step 6: Final answer
    x = 107,283.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.