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Finding the Fourth Proportional to 169,660.20, 254,490.30 and 98,509.80

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Solution

The fourth proportional to 169,660.20, 254,490.30 and 98,509.80 is: 147,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,660.20 : 254,490.30 = 98,509.80 : x
  2. Step 2: Convert to fraction form
    169,660.20/254,490.30 = 98,509.80/x
  3. Step 3: Cross multiply
    169,660.20x = 254,490.30 × 98,509.80
  4. Step 4: Simplify right side
    169,660.20x = 25,069,788,554.94
  5. Step 5: Solve for x
    x = 25,069,788,554.94/169,660.20
  6. Step 6: Final answer
    x = 147,764.70

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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.