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Finding the Fourth Proportional to 139,108.77, 208,660.83 and 44,337.66

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Solution

The fourth proportional to 139,108.77, 208,660.83 and 44,337.66 is: 66,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,108.77 : 208,660.83 = 44,337.66 : x
  2. Step 2: Convert to fraction form
    139,108.77/208,660.83 = 44,337.66/x
  3. Step 3: Cross multiply
    139,108.77x = 208,660.83 × 44,337.66
  4. Step 4: Simplify right side
    139,108.77x = 9,251,532,935.86
  5. Step 5: Solve for x
    x = 9,251,532,935.86/139,108.77
  6. Step 6: Final answer
    x = 66,505.75

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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.