Home / 161,838.21-223,336.77-90,216.69

Finding the Fourth Proportional to 161,838.21, 223,336.77 and 90,216.69

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Solution

The fourth proportional to 161,838.21, 223,336.77 and 90,216.69 is: 124,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.21 : 223,336.77 = 90,216.69 : x
  2. Step 2: Convert to fraction form
    161,838.21/223,336.77 = 90,216.69/x
  3. Step 3: Cross multiply
    161,838.21x = 223,336.77 × 90,216.69
  4. Step 4: Simplify right side
    161,838.21x = 20,148,704,144.69
  5. Step 5: Solve for x
    x = 20,148,704,144.69/161,838.21
  6. Step 6: Final answer
    x = 124,499.05

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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.