Home / 131,330.20-197,019.60-42,586.60

Finding the Fourth Proportional to 131,330.20, 197,019.60 and 42,586.60

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Solution

The fourth proportional to 131,330.20, 197,019.60 and 42,586.60 is: 63,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,330.20 : 197,019.60 = 42,586.60 : x
  2. Step 2: Convert to fraction form
    131,330.20/197,019.60 = 42,586.60/x
  3. Step 3: Cross multiply
    131,330.20x = 197,019.60 × 42,586.60
  4. Step 4: Simplify right side
    131,330.20x = 8,390,394,897.36
  5. Step 5: Solve for x
    x = 8,390,394,897.36/131,330.20
  6. Step 6: Final answer
    x = 63,887.78

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1.5x scale

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.