Home / 161,447.09-242,170.83-77,187.44

Finding the Fourth Proportional to 161,447.09, 242,170.83 and 77,187.44

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Solution

The fourth proportional to 161,447.09, 242,170.83 and 77,187.44 is: 115,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,447.09 : 242,170.83 = 77,187.44 : x
  2. Step 2: Convert to fraction form
    161,447.09/242,170.83 = 77,187.44/x
  3. Step 3: Cross multiply
    161,447.09x = 242,170.83 × 77,187.44
  4. Step 4: Simplify right side
    161,447.09x = 18,692,547,015.80
  5. Step 5: Solve for x
    x = 18,692,547,015.80/161,447.09
  6. Step 6: Final answer
    x = 115,781.26

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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.