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Finding the Fourth Proportional to 149,057.70, 223,586.55 and 90,008.70

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Solution

The fourth proportional to 149,057.70, 223,586.55 and 90,008.70 is: 135,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,057.70 : 223,586.55 = 90,008.70 : x
  2. Step 2: Convert to fraction form
    149,057.70/223,586.55 = 90,008.70/x
  3. Step 3: Cross multiply
    149,057.70x = 223,586.55 × 90,008.70
  4. Step 4: Simplify right side
    149,057.70x = 20,124,734,702.99
  5. Step 5: Solve for x
    x = 20,124,734,702.99/149,057.70
  6. Step 6: Final answer
    x = 135,013.05

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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.