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Finding the Fourth Proportional to 131,633.71, 197,412.90 and 42,894.97

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Solution

The fourth proportional to 131,633.71, 197,412.90 and 42,894.97 is: 64,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,633.71 : 197,412.90 = 42,894.97 : x
  2. Step 2: Convert to fraction form
    131,633.71/197,412.90 = 42,894.97/x
  3. Step 3: Cross multiply
    131,633.71x = 197,412.90 × 42,894.97
  4. Step 4: Simplify right side
    131,633.71x = 8,468,019,768.72
  5. Step 5: Solve for x
    x = 8,468,019,768.72/131,633.71
  6. Step 6: Final answer
    x = 64,330.18

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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.