Home / 208,340.36-287,320.72-136,693.16

Finding the Fourth Proportional to 208,340.36, 287,320.72 and 136,693.16

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Solution

The fourth proportional to 208,340.36, 287,320.72 and 136,693.16 is: 188,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,340.36 : 287,320.72 = 136,693.16 : x
  2. Step 2: Convert to fraction form
    208,340.36/287,320.72 = 136,693.16/x
  3. Step 3: Cross multiply
    208,340.36x = 287,320.72 × 136,693.16
  4. Step 4: Simplify right side
    208,340.36x = 39,274,777,150.28
  5. Step 5: Solve for x
    x = 39,274,777,150.28/208,340.36
  6. Step 6: Final answer
    x = 188,512.57

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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.