Home / 139,052.20-191,892.26-75,390.16

Finding the Fourth Proportional to 139,052.20, 191,892.26 and 75,390.16

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Solution

The fourth proportional to 139,052.20, 191,892.26 and 75,390.16 is: 104,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,052.20 : 191,892.26 = 75,390.16 : x
  2. Step 2: Convert to fraction form
    139,052.20/191,892.26 = 75,390.16/x
  3. Step 3: Cross multiply
    139,052.20x = 191,892.26 × 75,390.16
  4. Step 4: Simplify right side
    139,052.20x = 14,466,787,327.48
  5. Step 5: Solve for x
    x = 14,466,787,327.48/139,052.20
  6. Step 6: Final answer
    x = 104,038.54

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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.