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Finding the Fourth Proportional to 139,232.17, 192,140.57 and 75,569.98

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Solution

The fourth proportional to 139,232.17, 192,140.57 and 75,569.98 is: 104,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,232.17 : 192,140.57 = 75,569.98 : x
  2. Step 2: Convert to fraction form
    139,232.17/192,140.57 = 75,569.98/x
  3. Step 3: Cross multiply
    139,232.17x = 192,140.57 × 75,569.98
  4. Step 4: Simplify right side
    139,232.17x = 14,520,059,032.09
  5. Step 5: Solve for x
    x = 14,520,059,032.09/139,232.17
  6. Step 6: Final answer
    x = 104,286.67

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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.