Home / 144,239.81-199,039.68-79,706.30

Finding the Fourth Proportional to 144,239.81, 199,039.68 and 79,706.30

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Solution

The fourth proportional to 144,239.81, 199,039.68 and 79,706.30 is: 109,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,239.81 : 199,039.68 = 79,706.30 : x
  2. Step 2: Convert to fraction form
    144,239.81/199,039.68 = 79,706.30/x
  3. Step 3: Cross multiply
    144,239.81x = 199,039.68 × 79,706.30
  4. Step 4: Simplify right side
    144,239.81x = 15,864,715,450.79
  5. Step 5: Solve for x
    x = 15,864,715,450.79/144,239.81
  6. Step 6: Final answer
    x = 109,988.47

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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.