Home / 144,288.19-199,117.09-80,625.98

Finding the Fourth Proportional to 144,288.19, 199,117.09 and 80,625.98

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Solution

The fourth proportional to 144,288.19, 199,117.09 and 80,625.98 is: 111,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,288.19 : 199,117.09 = 80,625.98 : x
  2. Step 2: Convert to fraction form
    144,288.19/199,117.09 = 80,625.98/x
  3. Step 3: Cross multiply
    144,288.19x = 199,117.09 × 80,625.98
  4. Step 4: Simplify right side
    144,288.19x = 16,054,010,661.05
  5. Step 5: Solve for x
    x = 16,054,010,661.05/144,288.19
  6. Step 6: Final answer
    x = 111,263.51

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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.