Home / 139,226.29-192,132.42-75,564.12

Finding the Fourth Proportional to 139,226.29, 192,132.42 and 75,564.12

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Solution

The fourth proportional to 139,226.29, 192,132.42 and 75,564.12 is: 104,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.29 : 192,132.42 = 75,564.12 : x
  2. Step 2: Convert to fraction form
    139,226.29/192,132.42 = 75,564.12/x
  3. Step 3: Cross multiply
    139,226.29x = 192,132.42 × 75,564.12
  4. Step 4: Simplify right side
    139,226.29x = 14,518,316,280.11
  5. Step 5: Solve for x
    x = 14,518,316,280.11/139,226.29
  6. Step 6: Final answer
    x = 104,278.55

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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.