Home / 115,486.06-172,161.57-113,666.15

Finding the Fourth Proportional to 115,486.06, 172,161.57 and 113,666.15

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Solution

The fourth proportional to 115,486.06, 172,161.57 and 113,666.15 is: 169,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,486.06 : 172,161.57 = 113,666.15 : x
  2. Step 2: Convert to fraction form
    115,486.06/172,161.57 = 113,666.15/x
  3. Step 3: Cross multiply
    115,486.06x = 172,161.57 × 113,666.15
  4. Step 4: Simplify right side
    115,486.06x = 19,568,941,979.05
  5. Step 5: Solve for x
    x = 19,568,941,979.05/115,486.06
  6. Step 6: Final answer
    x = 169,448.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.