Home / 115,004.70-172,507.05-100,242.45

Finding the Fourth Proportional to 115,004.70, 172,507.05 and 100,242.45

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Solution

The fourth proportional to 115,004.70, 172,507.05 and 100,242.45 is: 150,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,004.70 : 172,507.05 = 100,242.45 : x
  2. Step 2: Convert to fraction form
    115,004.70/172,507.05 = 100,242.45/x
  3. Step 3: Cross multiply
    115,004.70x = 172,507.05 × 100,242.45
  4. Step 4: Simplify right side
    115,004.70x = 17,292,529,334.27
  5. Step 5: Solve for x
    x = 17,292,529,334.27/115,004.70
  6. Step 6: Final answer
    x = 150,363.68

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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.