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Finding the Fourth Proportional to 137,114.56, 189,219.54 and 80,526.88

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Solution

The fourth proportional to 137,114.56, 189,219.54 and 80,526.88 is: 111,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,114.56 : 189,219.54 = 80,526.88 : x
  2. Step 2: Convert to fraction form
    137,114.56/189,219.54 = 80,526.88/x
  3. Step 3: Cross multiply
    137,114.56x = 189,219.54 × 80,526.88
  4. Step 4: Simplify right side
    137,114.56x = 15,237,259,191.24
  5. Step 5: Solve for x
    x = 15,237,259,191.24/137,114.56
  6. Step 6: Final answer
    x = 111,127.94

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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.