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Finding the Fourth Proportional to 149,490.01, 223,981.26 and 90,201.10

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Solution

The fourth proportional to 149,490.01, 223,981.26 and 90,201.10 is: 135,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,490.01 : 223,981.26 = 90,201.10 : x
  2. Step 2: Convert to fraction form
    149,490.01/223,981.26 = 90,201.10/x
  3. Step 3: Cross multiply
    149,490.01x = 223,981.26 × 90,201.10
  4. Step 4: Simplify right side
    149,490.01x = 20,203,356,031.39
  5. Step 5: Solve for x
    x = 20,203,356,031.39/149,490.01
  6. Step 6: Final answer
    x = 135,148.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.