Home / 136,276.96-188,049.18-100,486.36

Finding the Fourth Proportional to 136,276.96, 188,049.18 and 100,486.36

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Solution

The fourth proportional to 136,276.96, 188,049.18 and 100,486.36 is: 138,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,276.96 : 188,049.18 = 100,486.36 : x
  2. Step 2: Convert to fraction form
    136,276.96/188,049.18 = 100,486.36/x
  3. Step 3: Cross multiply
    136,276.96x = 188,049.18 × 100,486.36
  4. Step 4: Simplify right side
    136,276.96x = 18,896,377,599.18
  5. Step 5: Solve for x
    x = 18,896,377,599.18/136,276.96
  6. Step 6: Final answer
    x = 138,661.57

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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.