Home / 126,367.72-174,417.36-72,683.75

Finding the Fourth Proportional to 126,367.72, 174,417.36 and 72,683.75

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Solution

The fourth proportional to 126,367.72, 174,417.36 and 72,683.75 is: 100,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367.72 : 174,417.36 = 72,683.75 : x
  2. Step 2: Convert to fraction form
    126,367.72/174,417.36 = 72,683.75/x
  3. Step 3: Cross multiply
    126,367.72x = 174,417.36 × 72,683.75
  4. Step 4: Simplify right side
    126,367.72x = 12,677,307,789.90
  5. Step 5: Solve for x
    x = 12,677,307,789.90/126,367.72
  6. Step 6: Final answer
    x = 100,320.78

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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.