Home / 136,162.58-187,913.75-75,738.85

Finding the Fourth Proportional to 136,162.58, 187,913.75 and 75,738.85

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Solution

The fourth proportional to 136,162.58, 187,913.75 and 75,738.85 is: 104,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,162.58 : 187,913.75 = 75,738.85 : x
  2. Step 2: Convert to fraction form
    136,162.58/187,913.75 = 75,738.85/x
  3. Step 3: Cross multiply
    136,162.58x = 187,913.75 × 75,738.85
  4. Step 4: Simplify right side
    136,162.58x = 14,232,370,688.72
  5. Step 5: Solve for x
    x = 14,232,370,688.72/136,162.58
  6. Step 6: Final answer
    x = 104,524.83

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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.