Home / 161,968.08-223,519.32-90,351.12

Finding the Fourth Proportional to 161,968.08, 223,519.32 and 90,351.12

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Solution

The fourth proportional to 161,968.08, 223,519.32 and 90,351.12 is: 124,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,968.08 : 223,519.32 = 90,351.12 : x
  2. Step 2: Convert to fraction form
    161,968.08/223,519.32 = 90,351.12/x
  3. Step 3: Cross multiply
    161,968.08x = 223,519.32 × 90,351.12
  4. Step 4: Simplify right side
    161,968.08x = 20,195,220,903.64
  5. Step 5: Solve for x
    x = 20,195,220,903.64/161,968.08
  6. Step 6: Final answer
    x = 124,686.43

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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.