Home / 136,682.73-188,454.58-112,398.83

Finding the Fourth Proportional to 136,682.73, 188,454.58 and 112,398.83

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Solution

The fourth proportional to 136,682.73, 188,454.58 and 112,398.83 is: 154,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,682.73 : 188,454.58 = 112,398.83 : x
  2. Step 2: Convert to fraction form
    136,682.73/188,454.58 = 112,398.83/x
  3. Step 3: Cross multiply
    136,682.73x = 188,454.58 × 112,398.83
  4. Step 4: Simplify right side
    136,682.73x = 21,182,074,300.14
  5. Step 5: Solve for x
    x = 21,182,074,300.14/136,682.73
  6. Step 6: Final answer
    x = 154,972.57

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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.