Home / 126,898.09-175,107.69-73,172.72

Finding the Fourth Proportional to 126,898.09, 175,107.69 and 73,172.72

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Solution

The fourth proportional to 126,898.09, 175,107.69 and 73,172.72 is: 100,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,898.09 : 175,107.69 = 73,172.72 : x
  2. Step 2: Convert to fraction form
    126,898.09/175,107.69 = 73,172.72/x
  3. Step 3: Cross multiply
    126,898.09x = 175,107.69 × 73,172.72
  4. Step 4: Simplify right side
    126,898.09x = 12,813,106,407.99
  5. Step 5: Solve for x
    x = 12,813,106,407.99/126,898.09
  6. Step 6: Final answer
    x = 100,971.63

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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.