Home / 139,070.24-208,613.70-39,238.97

Finding the Fourth Proportional to 139,070.24, 208,613.70 and 39,238.97

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Solution

The fourth proportional to 139,070.24, 208,613.70 and 39,238.97 is: 58,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,070.24 : 208,613.70 = 39,238.97 : x
  2. Step 2: Convert to fraction form
    139,070.24/208,613.70 = 39,238.97/x
  3. Step 3: Cross multiply
    139,070.24x = 208,613.70 × 39,238.97
  4. Step 4: Simplify right side
    139,070.24x = 8,185,786,715.89
  5. Step 5: Solve for x
    x = 8,185,786,715.89/139,070.24
  6. Step 6: Final answer
    x = 58,860.81

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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.