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Finding the Fourth Proportional to 144,287.93, 199,172.93 and 129,153.89

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Solution

The fourth proportional to 144,287.93, 199,172.93 and 129,153.89 is: 178,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,287.93 : 199,172.93 = 129,153.89 : x
  2. Step 2: Convert to fraction form
    144,287.93/199,172.93 = 129,153.89/x
  3. Step 3: Cross multiply
    144,287.93x = 199,172.93 × 129,153.89
  4. Step 4: Simplify right side
    144,287.93x = 25,723,958,544.36
  5. Step 5: Solve for x
    x = 25,723,958,544.36/144,287.93
  6. Step 6: Final answer
    x = 178,282.12

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1.5x scale

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.