Home / 208,590.03-287,772.83-136,078.17

Finding the Fourth Proportional to 208,590.03, 287,772.83 and 136,078.17

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Solution

The fourth proportional to 208,590.03, 287,772.83 and 136,078.17 is: 187,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,590.03 : 287,772.83 = 136,078.17 : x
  2. Step 2: Convert to fraction form
    208,590.03/287,772.83 = 136,078.17/x
  3. Step 3: Cross multiply
    208,590.03x = 287,772.83 × 136,078.17
  4. Step 4: Simplify right side
    208,590.03x = 39,159,600,082.12
  5. Step 5: Solve for x
    x = 39,159,600,082.12/208,590.03
  6. Step 6: Final answer
    x = 187,734.76

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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.