Home / 142,775.11-214,007.82-92,890.72

Finding the Fourth Proportional to 142,775.11, 214,007.82 and 92,890.72

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Solution

The fourth proportional to 142,775.11, 214,007.82 and 92,890.72 is: 139,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,775.11 : 214,007.82 = 92,890.72 : x
  2. Step 2: Convert to fraction form
    142,775.11/214,007.82 = 92,890.72/x
  3. Step 3: Cross multiply
    142,775.11x = 214,007.82 × 92,890.72
  4. Step 4: Simplify right side
    142,775.11x = 19,879,340,485.43
  5. Step 5: Solve for x
    x = 19,879,340,485.43/142,775.11
  6. Step 6: Final answer
    x = 139,235.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.