Home / 139,232.08-192,140.46-75,569.89

Finding the Fourth Proportional to 139,232.08, 192,140.46 and 75,569.89

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Solution

The fourth proportional to 139,232.08, 192,140.46 and 75,569.89 is: 104,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,232.08 : 192,140.46 = 75,569.89 : x
  2. Step 2: Convert to fraction form
    139,232.08/192,140.46 = 75,569.89/x
  3. Step 3: Cross multiply
    139,232.08x = 192,140.46 × 75,569.89
  4. Step 4: Simplify right side
    139,232.08x = 14,520,033,426.75
  5. Step 5: Solve for x
    x = 14,520,033,426.75/139,232.08
  6. Step 6: Final answer
    x = 104,286.55

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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.