Home / 102,019.54-140,787.25-56,697.38

Finding the Fourth Proportional to 102,019.54, 140,787.25 and 56,697.38

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Solution

The fourth proportional to 102,019.54, 140,787.25 and 56,697.38 is: 78,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,019.54 : 140,787.25 = 56,697.38 : x
  2. Step 2: Convert to fraction form
    102,019.54/140,787.25 = 56,697.38/x
  3. Step 3: Cross multiply
    102,019.54x = 140,787.25 × 56,697.38
  4. Step 4: Simplify right side
    102,019.54x = 7,982,267,928.92
  5. Step 5: Solve for x
    x = 7,982,267,928.92/102,019.54
  6. Step 6: Final answer
    x = 78,242.54

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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.