Home / 126,120.73-174,039.63-72,402.23

Finding the Fourth Proportional to 126,120.73, 174,039.63 and 72,402.23

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Solution

The fourth proportional to 126,120.73, 174,039.63 and 72,402.23 is: 99,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.73 : 174,039.63 = 72,402.23 : x
  2. Step 2: Convert to fraction form
    126,120.73/174,039.63 = 72,402.23/x
  3. Step 3: Cross multiply
    126,120.73x = 174,039.63 × 72,402.23
  4. Step 4: Simplify right side
    126,120.73x = 12,600,856,450.18
  5. Step 5: Solve for x
    x = 12,600,856,450.18/126,120.73
  6. Step 6: Final answer
    x = 99,911.07

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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.