Home / 172,743.36-259,253.28-89,661.12

Finding the Fourth Proportional to 172,743.36, 259,253.28 and 89,661.12

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Solution

The fourth proportional to 172,743.36, 259,253.28 and 89,661.12 is: 134,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,743.36 : 259,253.28 = 89,661.12 : x
  2. Step 2: Convert to fraction form
    172,743.36/259,253.28 = 89,661.12/x
  3. Step 3: Cross multiply
    172,743.36x = 259,253.28 × 89,661.12
  4. Step 4: Simplify right side
    172,743.36x = 23,244,939,448.47
  5. Step 5: Solve for x
    x = 23,244,939,448.47/172,743.36
  6. Step 6: Final answer
    x = 134,563.43

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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.