Home / 144,542.05-199,454.00-84,120.71

Finding the Fourth Proportional to 144,542.05, 199,454.00 and 84,120.71

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Solution

The fourth proportional to 144,542.05, 199,454.00 and 84,120.71 is: 116,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,542.05 : 199,454.00 = 84,120.71 : x
  2. Step 2: Convert to fraction form
    144,542.05/199,454.00 = 84,120.71/x
  3. Step 3: Cross multiply
    144,542.05x = 199,454.00 × 84,120.71
  4. Step 4: Simplify right side
    144,542.05x = 16,778,210,674.47
  5. Step 5: Solve for x
    x = 16,778,210,674.47/144,542.05
  6. Step 6: Final answer
    x = 116,078.41

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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.