Home / 144,393.12-199,265.94-80,730.36

Finding the Fourth Proportional to 144,393.12, 199,265.94 and 80,730.36

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Solution

The fourth proportional to 144,393.12, 199,265.94 and 80,730.36 is: 111,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,393.12 : 199,265.94 = 80,730.36 : x
  2. Step 2: Convert to fraction form
    144,393.12/199,265.94 = 80,730.36/x
  3. Step 3: Cross multiply
    144,393.12x = 199,265.94 × 80,730.36
  4. Step 4: Simplify right side
    144,393.12x = 16,086,811,071.94
  5. Step 5: Solve for x
    x = 16,086,811,071.94/144,393.12
  6. Step 6: Final answer
    x = 111,409.82

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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.