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Finding the Fourth Proportional to 70,151.86, 105,227.79 and 17,561.34

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Solution

The fourth proportional to 70,151.86, 105,227.79 and 17,561.34 is: 26,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,151.86 : 105,227.79 = 17,561.34 : x
  2. Step 2: Convert to fraction form
    70,151.86/105,227.79 = 17,561.34/x
  3. Step 3: Cross multiply
    70,151.86x = 105,227.79 × 17,561.34
  4. Step 4: Simplify right side
    70,151.86x = 1,847,940,997.64
  5. Step 5: Solve for x
    x = 1,847,940,997.64/70,151.86
  6. Step 6: Final answer
    x = 26,342.01

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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.