Home / 161,900.20-242,591.10-106,431.40

Finding the Fourth Proportional to 161,900.20, 242,591.10 and 106,431.40

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Solution

The fourth proportional to 161,900.20, 242,591.10 and 106,431.40 is: 159,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,900.20 : 242,591.10 = 106,431.40 : x
  2. Step 2: Convert to fraction form
    161,900.20/242,591.10 = 106,431.40/x
  3. Step 3: Cross multiply
    161,900.20x = 242,591.10 × 106,431.40
  4. Step 4: Simplify right side
    161,900.20x = 25,819,310,400.54
  5. Step 5: Solve for x
    x = 25,819,310,400.54/161,900.20
  6. Step 6: Final answer
    x = 159,476.70

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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.