Home / 161,883.32-223,399.08-90,261.72

Finding the Fourth Proportional to 161,883.32, 223,399.08 and 90,261.72

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Solution

The fourth proportional to 161,883.32, 223,399.08 and 90,261.72 is: 124,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,883.32 : 223,399.08 = 90,261.72 : x
  2. Step 2: Convert to fraction form
    161,883.32/223,399.08 = 90,261.72/x
  3. Step 3: Cross multiply
    161,883.32x = 223,399.08 × 90,261.72
  4. Step 4: Simplify right side
    161,883.32x = 20,164,385,207.22
  5. Step 5: Solve for x
    x = 20,164,385,207.22/161,883.32
  6. Step 6: Final answer
    x = 124,561.23

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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.