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Finding the Fourth Proportional to 149,066.80, 223,818.90 and 90,017.80

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Solution

The fourth proportional to 149,066.80, 223,818.90 and 90,017.80 is: 135,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,066.80 : 223,818.90 = 90,017.80 : x
  2. Step 2: Convert to fraction form
    149,066.80/223,818.90 = 90,017.80/x
  3. Step 3: Cross multiply
    149,066.80x = 223,818.90 × 90,017.80
  4. Step 4: Simplify right side
    149,066.80x = 20,147,684,976.42
  5. Step 5: Solve for x
    x = 20,147,684,976.42/149,066.80
  6. Step 6: Final answer
    x = 135,158.77

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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.