Home / 144,318.41-199,159.69-80,656.20

Finding the Fourth Proportional to 144,318.41, 199,159.69 and 80,656.20

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Solution

The fourth proportional to 144,318.41, 199,159.69 and 80,656.20 is: 111,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,318.41 : 199,159.69 = 80,656.20 : x
  2. Step 2: Convert to fraction form
    144,318.41/199,159.69 = 80,656.20/x
  3. Step 3: Cross multiply
    144,318.41x = 199,159.69 × 80,656.20
  4. Step 4: Simplify right side
    144,318.41x = 16,063,463,586.94
  5. Step 5: Solve for x
    x = 16,063,463,586.94/144,318.41
  6. Step 6: Final answer
    x = 111,305.72

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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.