Home / 139,226.92-192,133.34-75,564.72

Finding the Fourth Proportional to 139,226.92, 192,133.34 and 75,564.72

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Solution

The fourth proportional to 139,226.92, 192,133.34 and 75,564.72 is: 104,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.92 : 192,133.34 = 75,564.72 : x
  2. Step 2: Convert to fraction form
    139,226.92/192,133.34 = 75,564.72/x
  3. Step 3: Cross multiply
    139,226.92x = 192,133.34 × 75,564.72
  4. Step 4: Simplify right side
    139,226.92x = 14,518,502,039.76
  5. Step 5: Solve for x
    x = 14,518,502,039.76/139,226.92
  6. Step 6: Final answer
    x = 104,279.42

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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.