Home / 144,920.56-199,987.28-80,379.36

Finding the Fourth Proportional to 144,920.56, 199,987.28 and 80,379.36

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Solution

The fourth proportional to 144,920.56, 199,987.28 and 80,379.36 is: 110,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,920.56 : 199,987.28 = 80,379.36 : x
  2. Step 2: Convert to fraction form
    144,920.56/199,987.28 = 80,379.36/x
  3. Step 3: Cross multiply
    144,920.56x = 199,987.28 × 80,379.36
  4. Step 4: Simplify right side
    144,920.56x = 16,074,849,574.54
  5. Step 5: Solve for x
    x = 16,074,849,574.54/144,920.56
  6. Step 6: Final answer
    x = 110,921.80

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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.