Home / 115,207.92-172,812.96-73,131.12

Finding the Fourth Proportional to 115,207.92, 172,812.96 and 73,131.12

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Solution

The fourth proportional to 115,207.92, 172,812.96 and 73,131.12 is: 109,697.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207.92 : 172,812.96 = 73,131.12 : x
  2. Step 2: Convert to fraction form
    115,207.92/172,812.96 = 73,131.12/x
  3. Step 3: Cross multiply
    115,207.92x = 172,812.96 × 73,131.12
  4. Step 4: Simplify right side
    115,207.92x = 12,638,005,315.32
  5. Step 5: Solve for x
    x = 12,638,005,315.32/115,207.92
  6. Step 6: Final answer
    x = 109,697.37

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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.