Home / 161,973.21-223,538.56-90,359.90

Finding the Fourth Proportional to 161,973.21, 223,538.56 and 90,359.90

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Solution

The fourth proportional to 161,973.21, 223,538.56 and 90,359.90 is: 124,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,973.21 : 223,538.56 = 90,359.90 : x
  2. Step 2: Convert to fraction form
    161,973.21/223,538.56 = 90,359.90/x
  3. Step 3: Cross multiply
    161,973.21x = 223,538.56 × 90,359.90
  4. Step 4: Simplify right side
    161,973.21x = 20,198,920,584.15
  5. Step 5: Solve for x
    x = 20,198,920,584.15/161,973.21
  6. Step 6: Final answer
    x = 124,705.32

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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.