Home / 161,973.24-223,540.38-90,378.12

Finding the Fourth Proportional to 161,973.24, 223,540.38 and 90,378.12

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Solution

The fourth proportional to 161,973.24, 223,540.38 and 90,378.12 is: 124,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,973.24 : 223,540.38 = 90,378.12 : x
  2. Step 2: Convert to fraction form
    161,973.24/223,540.38 = 90,378.12/x
  3. Step 3: Cross multiply
    161,973.24x = 223,540.38 × 90,378.12
  4. Step 4: Simplify right side
    161,973.24x = 20,203,159,288.49
  5. Step 5: Solve for x
    x = 20,203,159,288.49/161,973.24
  6. Step 6: Final answer
    x = 124,731.46

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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.