Home / 139,226.95-192,132.03-75,564.73

Finding the Fourth Proportional to 139,226.95, 192,132.03 and 75,564.73

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Solution

The fourth proportional to 139,226.95, 192,132.03 and 75,564.73 is: 104,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.95 : 192,132.03 = 75,564.73 : x
  2. Step 2: Convert to fraction form
    139,226.95/192,132.03 = 75,564.73/x
  3. Step 3: Cross multiply
    139,226.95x = 192,132.03 × 75,564.73
  4. Step 4: Simplify right side
    139,226.95x = 14,518,404,971.30
  5. Step 5: Solve for x
    x = 14,518,404,971.30/139,226.95
  6. Step 6: Final answer
    x = 104,278.70

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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.