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Finding the Fourth Proportional to 102,896.80, 154,345.20 and 43,734.40

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Solution

The fourth proportional to 102,896.80, 154,345.20 and 43,734.40 is: 65,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,896.80 : 154,345.20 = 43,734.40 : x
  2. Step 2: Convert to fraction form
    102,896.80/154,345.20 = 43,734.40/x
  3. Step 3: Cross multiply
    102,896.80x = 154,345.20 × 43,734.40
  4. Step 4: Simplify right side
    102,896.80x = 6,750,194,714.88
  5. Step 5: Solve for x
    x = 6,750,194,714.88/102,896.80
  6. Step 6: Final answer
    x = 65,601.60

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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.