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Finding the Fourth Proportional to 137,082.66, 189,214.30 and 79,735.46

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Solution

The fourth proportional to 137,082.66, 189,214.30 and 79,735.46 is: 110,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,082.66 : 189,214.30 = 79,735.46 : x
  2. Step 2: Convert to fraction form
    137,082.66/189,214.30 = 79,735.46/x
  3. Step 3: Cross multiply
    137,082.66x = 189,214.30 × 79,735.46
  4. Step 4: Simplify right side
    137,082.66x = 15,087,089,249.08
  5. Step 5: Solve for x
    x = 15,087,089,249.08/137,082.66
  6. Step 6: Final answer
    x = 110,058.33

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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.