Home / 139,226.61-192,132.91-75,564.41

Finding the Fourth Proportional to 139,226.61, 192,132.91 and 75,564.41

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Solution

The fourth proportional to 139,226.61, 192,132.91 and 75,564.41 is: 104,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.61 : 192,132.91 = 75,564.41 : x
  2. Step 2: Convert to fraction form
    139,226.61/192,132.91 = 75,564.41/x
  3. Step 3: Cross multiply
    139,226.61x = 192,132.91 × 75,564.41
  4. Step 4: Simplify right side
    139,226.61x = 14,518,409,025.07
  5. Step 5: Solve for x
    x = 14,518,409,025.07/139,226.61
  6. Step 6: Final answer
    x = 104,278.98

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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.