Home / 139,319.86-208,979.77-34,137.92

Finding the Fourth Proportional to 139,319.86, 208,979.77 and 34,137.92

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Solution

The fourth proportional to 139,319.86, 208,979.77 and 34,137.92 is: 51,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,319.86 : 208,979.77 = 34,137.92 : x
  2. Step 2: Convert to fraction form
    139,319.86/208,979.77 = 34,137.92/x
  3. Step 3: Cross multiply
    139,319.86x = 208,979.77 × 34,137.92
  4. Step 4: Simplify right side
    139,319.86x = 7,134,134,669.88
  5. Step 5: Solve for x
    x = 7,134,134,669.88/139,319.86
  6. Step 6: Final answer
    x = 51,206.88

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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.