Home / 115,318.14-172,850.84-45,120.30

Finding the Fourth Proportional to 115,318.14, 172,850.84 and 45,120.30

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Solution

The fourth proportional to 115,318.14, 172,850.84 and 45,120.30 is: 67,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,318.14 : 172,850.84 = 45,120.30 : x
  2. Step 2: Convert to fraction form
    115,318.14/172,850.84 = 45,120.30/x
  3. Step 3: Cross multiply
    115,318.14x = 172,850.84 × 45,120.30
  4. Step 4: Simplify right side
    115,318.14x = 7,799,081,756.05
  5. Step 5: Solve for x
    x = 7,799,081,756.05/115,318.14
  6. Step 6: Final answer
    x = 67,631.01

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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.