Home / 208,622.39-287,896.38-113,127.94

Finding the Fourth Proportional to 208,622.39, 287,896.38 and 113,127.94

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Solution

The fourth proportional to 208,622.39, 287,896.38 and 113,127.94 is: 156,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,622.39 : 287,896.38 = 113,127.94 : x
  2. Step 2: Convert to fraction form
    208,622.39/287,896.38 = 113,127.94/x
  3. Step 3: Cross multiply
    208,622.39x = 287,896.38 × 113,127.94
  4. Step 4: Simplify right side
    208,622.39x = 32,569,124,338.50
  5. Step 5: Solve for x
    x = 32,569,124,338.50/208,622.39
  6. Step 6: Final answer
    x = 156,115.20

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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.