Home / 157,715.85-236,573.78-126,611.85

Finding the Fourth Proportional to 157,715.85, 236,573.78 and 126,611.85

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Solution

The fourth proportional to 157,715.85, 236,573.78 and 126,611.85 is: 189,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,715.85 : 236,573.78 = 126,611.85 : x
  2. Step 2: Convert to fraction form
    157,715.85/236,573.78 = 126,611.85/x
  3. Step 3: Cross multiply
    157,715.85x = 236,573.78 × 126,611.85
  4. Step 4: Simplify right side
    157,715.85x = 29,953,043,314.23
  5. Step 5: Solve for x
    x = 29,953,043,314.23/157,715.85
  6. Step 6: Final answer
    x = 189,917.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.