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Finding the Fourth Proportional to 139,463.55, 209,209.16 and 44,669.92

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Solution

The fourth proportional to 139,463.55, 209,209.16 and 44,669.92 is: 67,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,463.55 : 209,209.16 = 44,669.92 : x
  2. Step 2: Convert to fraction form
    139,463.55/209,209.16 = 44,669.92/x
  3. Step 3: Cross multiply
    139,463.55x = 209,209.16 × 44,669.92
  4. Step 4: Simplify right side
    139,463.55x = 9,345,356,440.47
  5. Step 5: Solve for x
    x = 9,345,356,440.47/139,463.55
  6. Step 6: Final answer
    x = 67,009.31

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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.