Home / 139,372.48-192,336.08-75,711.52

Finding the Fourth Proportional to 139,372.48, 192,336.08 and 75,711.52

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Solution

The fourth proportional to 139,372.48, 192,336.08 and 75,711.52 is: 104,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,372.48 : 192,336.08 = 75,711.52 : x
  2. Step 2: Convert to fraction form
    139,372.48/192,336.08 = 75,711.52/x
  3. Step 3: Cross multiply
    139,372.48x = 192,336.08 × 75,711.52
  4. Step 4: Simplify right side
    139,372.48x = 14,562,056,967.64
  5. Step 5: Solve for x
    x = 14,562,056,967.64/139,372.48
  6. Step 6: Final answer
    x = 104,483.02

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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.