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Finding the Fourth Proportional to 139,521.68, 209,282.54 and 41,025.68

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Solution

The fourth proportional to 139,521.68, 209,282.54 and 41,025.68 is: 61,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,521.68 : 209,282.54 = 41,025.68 : x
  2. Step 2: Convert to fraction form
    139,521.68/209,282.54 = 41,025.68/x
  3. Step 3: Cross multiply
    139,521.68x = 209,282.54 × 41,025.68
  4. Step 4: Simplify right side
    139,521.68x = 8,585,958,515.63
  5. Step 5: Solve for x
    x = 8,585,958,515.63/139,521.68
  6. Step 6: Final answer
    x = 61,538.53

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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.