Home / 139,244.96-192,158.16-75,582.72

Finding the Fourth Proportional to 139,244.96, 192,158.16 and 75,582.72

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Solution

The fourth proportional to 139,244.96, 192,158.16 and 75,582.72 is: 104,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,244.96 : 192,158.16 = 75,582.72 : x
  2. Step 2: Convert to fraction form
    139,244.96/192,158.16 = 75,582.72/x
  3. Step 3: Cross multiply
    139,244.96x = 192,158.16 × 75,582.72
  4. Step 4: Simplify right side
    139,244.96x = 14,523,836,403.00
  5. Step 5: Solve for x
    x = 14,523,836,403.00/139,244.96
  6. Step 6: Final answer
    x = 104,304.22

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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.