Home / 161,801.85-223,286.81-90,180.34

Finding the Fourth Proportional to 161,801.85, 223,286.81 and 90,180.34

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Solution

The fourth proportional to 161,801.85, 223,286.81 and 90,180.34 is: 124,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,801.85 : 223,286.81 = 90,180.34 : x
  2. Step 2: Convert to fraction form
    161,801.85/223,286.81 = 90,180.34/x
  3. Step 3: Cross multiply
    161,801.85x = 223,286.81 × 90,180.34
  4. Step 4: Simplify right side
    161,801.85x = 20,136,079,434.20
  5. Step 5: Solve for x
    x = 20,136,079,434.20/161,801.85
  6. Step 6: Final answer
    x = 124,449.00

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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.