Home / 161,906.86-223,432.44-90,291.41

Finding the Fourth Proportional to 161,906.86, 223,432.44 and 90,291.41

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Solution

The fourth proportional to 161,906.86, 223,432.44 and 90,291.41 is: 124,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,906.86 : 223,432.44 = 90,291.41 : x
  2. Step 2: Convert to fraction form
    161,906.86/223,432.44 = 90,291.41/x
  3. Step 3: Cross multiply
    161,906.86x = 223,432.44 × 90,291.41
  4. Step 4: Simplify right side
    161,906.86x = 20,174,030,605.92
  5. Step 5: Solve for x
    x = 20,174,030,605.92/161,906.86
  6. Step 6: Final answer
    x = 124,602.69

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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.