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Finding the Fourth Proportional to 131,659.62, 197,509.86 and 42,892.44

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Solution

The fourth proportional to 131,659.62, 197,509.86 and 42,892.44 is: 64,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,659.62 : 197,509.86 = 42,892.44 : x
  2. Step 2: Convert to fraction form
    131,659.62/197,509.86 = 42,892.44/x
  3. Step 3: Cross multiply
    131,659.62x = 197,509.86 × 42,892.44
  4. Step 4: Simplify right side
    131,659.62x = 8,471,679,819.46
  5. Step 5: Solve for x
    x = 8,471,679,819.46/131,659.62
  6. Step 6: Final answer
    x = 64,345.32

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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.