Home / 144,678.74-199,638.68-81,006.26

Finding the Fourth Proportional to 144,678.74, 199,638.68 and 81,006.26

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Solution

The fourth proportional to 144,678.74, 199,638.68 and 81,006.26 is: 111,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,678.74 : 199,638.68 = 81,006.26 : x
  2. Step 2: Convert to fraction form
    144,678.74/199,638.68 = 81,006.26/x
  3. Step 3: Cross multiply
    144,678.74x = 199,638.68 × 81,006.26
  4. Step 4: Simplify right side
    144,678.74x = 16,171,982,818.14
  5. Step 5: Solve for x
    x = 16,171,982,818.14/144,678.74
  6. Step 6: Final answer
    x = 111,778.57

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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.