Home / 188,107.08-259,587.90-103,228.80

Finding the Fourth Proportional to 188,107.08, 259,587.90 and 103,228.80

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Solution

The fourth proportional to 188,107.08, 259,587.90 and 103,228.80 is: 142,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,107.08 : 259,587.90 = 103,228.80 : x
  2. Step 2: Convert to fraction form
    188,107.08/259,587.90 = 103,228.80/x
  3. Step 3: Cross multiply
    188,107.08x = 259,587.90 × 103,228.80
  4. Step 4: Simplify right side
    188,107.08x = 26,796,947,411.52
  5. Step 5: Solve for x
    x = 26,796,947,411.52/188,107.08
  6. Step 6: Final answer
    x = 142,455.82

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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.