Home / 161,638.86-223,045.65-90,025.56

Finding the Fourth Proportional to 161,638.86, 223,045.65 and 90,025.56

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Solution

The fourth proportional to 161,638.86, 223,045.65 and 90,025.56 is: 124,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,638.86 : 223,045.65 = 90,025.56 : x
  2. Step 2: Convert to fraction form
    161,638.86/223,045.65 = 90,025.56/x
  3. Step 3: Cross multiply
    161,638.86x = 223,045.65 × 90,025.56
  4. Step 4: Simplify right side
    161,638.86x = 20,079,809,546.81
  5. Step 5: Solve for x
    x = 20,079,809,546.81/161,638.86
  6. Step 6: Final answer
    x = 124,226.37

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1.5x scale

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.