Home / 104,424.72-156,439.80-80,936.16

Finding the Fourth Proportional to 104,424.72, 156,439.80 and 80,936.16

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Solution

The fourth proportional to 104,424.72, 156,439.80 and 80,936.16 is: 121,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,424.72 : 156,439.80 = 80,936.16 : x
  2. Step 2: Convert to fraction form
    104,424.72/156,439.80 = 80,936.16/x
  3. Step 3: Cross multiply
    104,424.72x = 156,439.80 × 80,936.16
  4. Step 4: Simplify right side
    104,424.72x = 12,661,636,683.17
  5. Step 5: Solve for x
    x = 12,661,636,683.17/104,424.72
  6. Step 6: Final answer
    x = 121,251.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.