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Finding the Fourth Proportional to 126,356.94, 174,372.46 and 72,652.45

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Solution

The fourth proportional to 126,356.94, 174,372.46 and 72,652.45 is: 100,260.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,356.94 : 174,372.46 = 72,652.45 : x
  2. Step 2: Convert to fraction form
    126,356.94/174,372.46 = 72,652.45/x
  3. Step 3: Cross multiply
    126,356.94x = 174,372.46 × 72,652.45
  4. Step 4: Simplify right side
    126,356.94x = 12,668,586,431.53
  5. Step 5: Solve for x
    x = 12,668,586,431.53/126,356.94
  6. Step 6: Final answer
    x = 100,260.31

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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.