Home / 139,179.16-208,775.76-39,346.52

Finding the Fourth Proportional to 139,179.16, 208,775.76 and 39,346.52

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Solution

The fourth proportional to 139,179.16, 208,775.76 and 39,346.52 is: 59,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,179.16 : 208,775.76 = 39,346.52 : x
  2. Step 2: Convert to fraction form
    139,179.16/208,775.76 = 39,346.52/x
  3. Step 3: Cross multiply
    139,179.16x = 208,775.76 × 39,346.52
  4. Step 4: Simplify right side
    139,179.16x = 8,214,599,616.36
  5. Step 5: Solve for x
    x = 8,214,599,616.36/139,179.16
  6. Step 6: Final answer
    x = 59,021.76

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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.