Home / 144,320.66-199,162.80-80,658.45

Finding the Fourth Proportional to 144,320.66, 199,162.80 and 80,658.45

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Solution

The fourth proportional to 144,320.66, 199,162.80 and 80,658.45 is: 111,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,320.66 : 199,162.80 = 80,658.45 : x
  2. Step 2: Convert to fraction form
    144,320.66/199,162.80 = 80,658.45/x
  3. Step 3: Cross multiply
    144,320.66x = 199,162.80 × 80,658.45
  4. Step 4: Simplify right side
    144,320.66x = 16,064,162,745.66
  5. Step 5: Solve for x
    x = 16,064,162,745.66/144,320.66
  6. Step 6: Final answer
    x = 111,308.83

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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.