Home / 161,656.86-223,093.39-90,036.90

Finding the Fourth Proportional to 161,656.86, 223,093.39 and 90,036.90

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Solution

The fourth proportional to 161,656.86, 223,093.39 and 90,036.90 is: 124,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,656.86 : 223,093.39 = 90,036.90 : x
  2. Step 2: Convert to fraction form
    161,656.86/223,093.39 = 90,036.90/x
  3. Step 3: Cross multiply
    161,656.86x = 223,093.39 × 90,036.90
  4. Step 4: Simplify right side
    161,656.86x = 20,086,637,246.09
  5. Step 5: Solve for x
    x = 20,086,637,246.09/161,656.86
  6. Step 6: Final answer
    x = 124,254.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.