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Finding the Fourth Proportional to 131,357.70, 197,105.40 and 60,301.80

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Solution

The fourth proportional to 131,357.70, 197,105.40 and 60,301.80 is: 90,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,357.70 : 197,105.40 = 60,301.80 : x
  2. Step 2: Convert to fraction form
    131,357.70/197,105.40 = 60,301.80/x
  3. Step 3: Cross multiply
    131,357.70x = 197,105.40 × 60,301.80
  4. Step 4: Simplify right side
    131,357.70x = 11,885,810,409.72
  5. Step 5: Solve for x
    x = 11,885,810,409.72/131,357.70
  6. Step 6: Final answer
    x = 90,484.31

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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.