Home / 107,426.80-161,140.20-89,930.80

Finding the Fourth Proportional to 107,426.80, 161,140.20 and 89,930.80

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Solution

The fourth proportional to 107,426.80, 161,140.20 and 89,930.80 is: 134,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,426.80 : 161,140.20 = 89,930.80 : x
  2. Step 2: Convert to fraction form
    107,426.80/161,140.20 = 89,930.80/x
  3. Step 3: Cross multiply
    107,426.80x = 161,140.20 × 89,930.80
  4. Step 4: Simplify right side
    107,426.80x = 14,491,467,098.16
  5. Step 5: Solve for x
    x = 14,491,467,098.16/107,426.80
  6. Step 6: Final answer
    x = 134,896.20

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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.