Home / 139,905.39-209,747.21-73,332.75

Finding the Fourth Proportional to 139,905.39, 209,747.21 and 73,332.75

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Solution

The fourth proportional to 139,905.39, 209,747.21 and 73,332.75 is: 109,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,905.39 : 209,747.21 = 73,332.75 : x
  2. Step 2: Convert to fraction form
    139,905.39/209,747.21 = 73,332.75/x
  3. Step 3: Cross multiply
    139,905.39x = 209,747.21 × 73,332.75
  4. Step 4: Simplify right side
    139,905.39x = 15,381,339,347.46
  5. Step 5: Solve for x
    x = 15,381,339,347.46/139,905.39
  6. Step 6: Final answer
    x = 109,941.01

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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.