Home / 161,805.08-223,292.04-90,189.64

Finding the Fourth Proportional to 161,805.08, 223,292.04 and 90,189.64

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Solution

The fourth proportional to 161,805.08, 223,292.04 and 90,189.64 is: 124,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,805.08 : 223,292.04 = 90,189.64 : x
  2. Step 2: Convert to fraction form
    161,805.08/223,292.04 = 90,189.64/x
  3. Step 3: Cross multiply
    161,805.08x = 223,292.04 × 90,189.64
  4. Step 4: Simplify right side
    161,805.08x = 20,138,628,702.47
  5. Step 5: Solve for x
    x = 20,138,628,702.47/161,805.08
  6. Step 6: Final answer
    x = 124,462.28

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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.