Home / 126,103.15-174,007.40-85,804.03

Finding the Fourth Proportional to 126,103.15, 174,007.40 and 85,804.03

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Solution

The fourth proportional to 126,103.15, 174,007.40 and 85,804.03 is: 118,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,103.15 : 174,007.40 = 85,804.03 : x
  2. Step 2: Convert to fraction form
    126,103.15/174,007.40 = 85,804.03/x
  3. Step 3: Cross multiply
    126,103.15x = 174,007.40 × 85,804.03
  4. Step 4: Simplify right side
    126,103.15x = 14,930,536,169.82
  5. Step 5: Solve for x
    x = 14,930,536,169.82/126,103.15
  6. Step 6: Final answer
    x = 118,399.39

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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.