Home / 131,650.80-197,427.60-42,907.20

Finding the Fourth Proportional to 131,650.80, 197,427.60 and 42,907.20

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Solution

The fourth proportional to 131,650.80, 197,427.60 and 42,907.20 is: 64,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.80 : 197,427.60 = 42,907.20 : x
  2. Step 2: Convert to fraction form
    131,650.80/197,427.60 = 42,907.20/x
  3. Step 3: Cross multiply
    131,650.80x = 197,427.60 × 42,907.20
  4. Step 4: Simplify right side
    131,650.80x = 8,471,065,518.72
  5. Step 5: Solve for x
    x = 8,471,065,518.72/131,650.80
  6. Step 6: Final answer
    x = 64,344.96

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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.