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Finding the Fourth Proportional to 139,239.48, 208,680.48 and 63,282.54

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Solution

The fourth proportional to 139,239.48, 208,680.48 and 63,282.54 is: 94,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,239.48 : 208,680.48 = 63,282.54 : x
  2. Step 2: Convert to fraction form
    139,239.48/208,680.48 = 63,282.54/x
  3. Step 3: Cross multiply
    139,239.48x = 208,680.48 × 63,282.54
  4. Step 4: Simplify right side
    139,239.48x = 13,205,830,822.82
  5. Step 5: Solve for x
    x = 13,205,830,822.82/139,239.48
  6. Step 6: Final answer
    x = 94,842.57

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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.