Home / 161,771.88-223,242.56-90,150.06

Finding the Fourth Proportional to 161,771.88, 223,242.56 and 90,150.06

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Solution

The fourth proportional to 161,771.88, 223,242.56 and 90,150.06 is: 124,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,771.88 : 223,242.56 = 90,150.06 : x
  2. Step 2: Convert to fraction form
    161,771.88/223,242.56 = 90,150.06/x
  3. Step 3: Cross multiply
    161,771.88x = 223,242.56 × 90,150.06
  4. Step 4: Simplify right side
    161,771.88x = 20,125,330,178.55
  5. Step 5: Solve for x
    x = 20,125,330,178.55/161,771.88
  6. Step 6: Final answer
    x = 124,405.61

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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.