Home / 139,226.95-192,133.38-75,564.75

Finding the Fourth Proportional to 139,226.95, 192,133.38 and 75,564.75

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Solution

The fourth proportional to 139,226.95, 192,133.38 and 75,564.75 is: 104,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.95 : 192,133.38 = 75,564.75 : x
  2. Step 2: Convert to fraction form
    139,226.95/192,133.38 = 75,564.75/x
  3. Step 3: Cross multiply
    139,226.95x = 192,133.38 × 75,564.75
  4. Step 4: Simplify right side
    139,226.95x = 14,518,510,749.47
  5. Step 5: Solve for x
    x = 14,518,510,749.47/139,226.95
  6. Step 6: Final answer
    x = 104,279.46

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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.