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Finding the Fourth Proportional to 161,313.32, 242,019.21 and 82,482.92

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Solution

The fourth proportional to 161,313.32, 242,019.21 and 82,482.92 is: 123,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,313.32 : 242,019.21 = 82,482.92 : x
  2. Step 2: Convert to fraction form
    161,313.32/242,019.21 = 82,482.92/x
  3. Step 3: Cross multiply
    161,313.32x = 242,019.21 × 82,482.92
  4. Step 4: Simplify right side
    161,313.32x = 19,962,451,136.89
  5. Step 5: Solve for x
    x = 19,962,451,136.89/161,313.32
  6. Step 6: Final answer
    x = 123,749.55

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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.