Home / 115,133.76-172,656.96-45,004.32

Finding the Fourth Proportional to 115,133.76, 172,656.96 and 45,004.32

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Solution

The fourth proportional to 115,133.76, 172,656.96 and 45,004.32 is: 67,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,133.76 : 172,656.96 = 45,004.32 : x
  2. Step 2: Convert to fraction form
    115,133.76/172,656.96 = 45,004.32/x
  3. Step 3: Cross multiply
    115,133.76x = 172,656.96 × 45,004.32
  4. Step 4: Simplify right side
    115,133.76x = 7,770,309,078.07
  5. Step 5: Solve for x
    x = 7,770,309,078.07/115,133.76
  6. Step 6: Final answer
    x = 67,489.41

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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.