Home / 208,761.45-288,089.87-113,267.92

Finding the Fourth Proportional to 208,761.45, 288,089.87 and 113,267.92

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Solution

The fourth proportional to 208,761.45, 288,089.87 and 113,267.92 is: 156,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,761.45 : 288,089.87 = 113,267.92 : x
  2. Step 2: Convert to fraction form
    208,761.45/288,089.87 = 113,267.92/x
  3. Step 3: Cross multiply
    208,761.45x = 288,089.87 × 113,267.92
  4. Step 4: Simplify right side
    208,761.45x = 32,631,339,601.57
  5. Step 5: Solve for x
    x = 32,631,339,601.57/208,761.45
  6. Step 6: Final answer
    x = 156,309.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.