Home / 130,946.56-196,431.99-42,179.20

Finding the Fourth Proportional to 130,946.56, 196,431.99 and 42,179.20

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Solution

The fourth proportional to 130,946.56, 196,431.99 and 42,179.20 is: 63,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.56 : 196,431.99 = 42,179.20 : x
  2. Step 2: Convert to fraction form
    130,946.56/196,431.99 = 42,179.20/x
  3. Step 3: Cross multiply
    130,946.56x = 196,431.99 × 42,179.20
  4. Step 4: Simplify right side
    130,946.56x = 8,285,344,192.61
  5. Step 5: Solve for x
    x = 8,285,344,192.61/130,946.56
  6. Step 6: Final answer
    x = 63,272.71

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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.