Home / 126,709.92-174,858.72-70,124.64

Finding the Fourth Proportional to 126,709.92, 174,858.72 and 70,124.64

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Solution

The fourth proportional to 126,709.92, 174,858.72 and 70,124.64 is: 96,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,709.92 : 174,858.72 = 70,124.64 : x
  2. Step 2: Convert to fraction form
    126,709.92/174,858.72 = 70,124.64/x
  3. Step 3: Cross multiply
    126,709.92x = 174,858.72 × 70,124.64
  4. Step 4: Simplify right side
    126,709.92x = 12,261,904,790.86
  5. Step 5: Solve for x
    x = 12,261,904,790.86/126,709.92
  6. Step 6: Final answer
    x = 96,771.47

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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.