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Finding the Fourth Proportional to 136,291.77, 188,082.65 and 75,861.12

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Solution

The fourth proportional to 136,291.77, 188,082.65 and 75,861.12 is: 104,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,291.77 : 188,082.65 = 75,861.12 : x
  2. Step 2: Convert to fraction form
    136,291.77/188,082.65 = 75,861.12/x
  3. Step 3: Cross multiply
    136,291.77x = 188,082.65 × 75,861.12
  4. Step 4: Simplify right side
    136,291.77x = 14,268,160,481.57
  5. Step 5: Solve for x
    x = 14,268,160,481.57/136,291.77
  6. Step 6: Final answer
    x = 104,688.35

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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.