Home / 131,474.80-197,163.60-42,731.20

Finding the Fourth Proportional to 131,474.80, 197,163.60 and 42,731.20

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Solution

The fourth proportional to 131,474.80, 197,163.60 and 42,731.20 is: 64,081.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,474.80 : 197,163.60 = 42,731.20 : x
  2. Step 2: Convert to fraction form
    131,474.80/197,163.60 = 42,731.20/x
  3. Step 3: Cross multiply
    131,474.80x = 197,163.60 × 42,731.20
  4. Step 4: Simplify right side
    131,474.80x = 8,425,037,224.32
  5. Step 5: Solve for x
    x = 8,425,037,224.32/131,474.80
  6. Step 6: Final answer
    x = 64,081.00

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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.