Home / 120,089.66-180,107.07-45,217.70

Finding the Fourth Proportional to 120,089.66, 180,107.07 and 45,217.70

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Solution

The fourth proportional to 120,089.66, 180,107.07 and 45,217.70 is: 67,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,089.66 : 180,107.07 = 45,217.70 : x
  2. Step 2: Convert to fraction form
    120,089.66/180,107.07 = 45,217.70/x
  3. Step 3: Cross multiply
    120,089.66x = 180,107.07 × 45,217.70
  4. Step 4: Simplify right side
    120,089.66x = 8,144,027,459.14
  5. Step 5: Solve for x
    x = 8,144,027,459.14/120,089.66
  6. Step 6: Final answer
    x = 67,816.23

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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.