Home / 115,317.14-172,849.34-45,119.30

Finding the Fourth Proportional to 115,317.14, 172,849.34 and 45,119.30

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Solution

The fourth proportional to 115,317.14, 172,849.34 and 45,119.30 is: 67,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,317.14 : 172,849.34 = 45,119.30 : x
  2. Step 2: Convert to fraction form
    115,317.14/172,849.34 = 45,119.30/x
  3. Step 3: Cross multiply
    115,317.14x = 172,849.34 × 45,119.30
  4. Step 4: Simplify right side
    115,317.14x = 7,798,841,226.26
  5. Step 5: Solve for x
    x = 7,798,841,226.26/115,317.14
  6. Step 6: Final answer
    x = 67,629.51

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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.