Home / 144,325.80-199,156.32-80,661.42

Finding the Fourth Proportional to 144,325.80, 199,156.32 and 80,661.42

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Solution

The fourth proportional to 144,325.80, 199,156.32 and 80,661.42 is: 111,305.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,325.80 : 199,156.32 = 80,661.42 : x
  2. Step 2: Convert to fraction form
    144,325.80/199,156.32 = 80,661.42/x
  3. Step 3: Cross multiply
    144,325.80x = 199,156.32 × 80,661.42
  4. Step 4: Simplify right side
    144,325.80x = 16,064,231,573.17
  5. Step 5: Solve for x
    x = 16,064,231,573.17/144,325.80
  6. Step 6: Final answer
    x = 111,305.34

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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.