Home / 161,633.87-223,038.77-90,020.56

Finding the Fourth Proportional to 161,633.87, 223,038.77 and 90,020.56

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Solution

The fourth proportional to 161,633.87, 223,038.77 and 90,020.56 is: 124,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,633.87 : 223,038.77 = 90,020.56 : x
  2. Step 2: Convert to fraction form
    161,633.87/223,038.77 = 90,020.56/x
  3. Step 3: Cross multiply
    161,633.87x = 223,038.77 × 90,020.56
  4. Step 4: Simplify right side
    161,633.87x = 20,078,074,519.86
  5. Step 5: Solve for x
    x = 20,078,074,519.86/161,633.87
  6. Step 6: Final answer
    x = 124,219.47

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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.