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Finding the Fourth Proportional to 130,980.78, 196,470.36 and 37,486.80

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Solution

The fourth proportional to 130,980.78, 196,470.36 and 37,486.80 is: 56,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,980.78 : 196,470.36 = 37,486.80 : x
  2. Step 2: Convert to fraction form
    130,980.78/196,470.36 = 37,486.80/x
  3. Step 3: Cross multiply
    130,980.78x = 196,470.36 × 37,486.80
  4. Step 4: Simplify right side
    130,980.78x = 7,365,045,091.25
  5. Step 5: Solve for x
    x = 7,365,045,091.25/130,980.78
  6. Step 6: Final answer
    x = 56,229.97

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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.