Home / 131,530.60-197,376.90-56,686.60

Finding the Fourth Proportional to 131,530.60, 197,376.90 and 56,686.60

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Solution

The fourth proportional to 131,530.60, 197,376.90 and 56,686.60 is: 85,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,530.60 : 197,376.90 = 56,686.60 : x
  2. Step 2: Convert to fraction form
    131,530.60/197,376.90 = 56,686.60/x
  3. Step 3: Cross multiply
    131,530.60x = 197,376.90 × 56,686.60
  4. Step 4: Simplify right side
    131,530.60x = 11,188,625,379.54
  5. Step 5: Solve for x
    x = 11,188,625,379.54/131,530.60
  6. Step 6: Final answer
    x = 85,064.81

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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.