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Finding the Fourth Proportional to 144,639.06, 199,609.29 and 80,973.06

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Solution

The fourth proportional to 144,639.06, 199,609.29 and 80,973.06 is: 111,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,639.06 : 199,609.29 = 80,973.06 : x
  2. Step 2: Convert to fraction form
    144,639.06/199,609.29 = 80,973.06/x
  3. Step 3: Cross multiply
    144,639.06x = 199,609.29 × 80,973.06
  4. Step 4: Simplify right side
    144,639.06x = 16,162,975,015.73
  5. Step 5: Solve for x
    x = 16,162,975,015.73/144,639.06
  6. Step 6: Final answer
    x = 111,746.96

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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.