Home / 126,436.87-174,475.88-72,722.79

Finding the Fourth Proportional to 126,436.87, 174,475.88 and 72,722.79

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Solution

The fourth proportional to 126,436.87, 174,475.88 and 72,722.79 is: 100,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,436.87 : 174,475.88 = 72,722.79 : x
  2. Step 2: Convert to fraction form
    126,436.87/174,475.88 = 72,722.79/x
  3. Step 3: Cross multiply
    126,436.87x = 174,475.88 × 72,722.79
  4. Step 4: Simplify right side
    126,436.87x = 12,688,372,417.69
  5. Step 5: Solve for x
    x = 12,688,372,417.69/126,436.87
  6. Step 6: Final answer
    x = 100,353.42

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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.