Home / 129,822.06-179,155.80-72,466.80

Finding the Fourth Proportional to 129,822.06, 179,155.80 and 72,466.80

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Solution

The fourth proportional to 129,822.06, 179,155.80 and 72,466.80 is: 100,004.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,822.06 : 179,155.80 = 72,466.80 : x
  2. Step 2: Convert to fraction form
    129,822.06/179,155.80 = 72,466.80/x
  3. Step 3: Cross multiply
    129,822.06x = 179,155.80 × 72,466.80
  4. Step 4: Simplify right side
    129,822.06x = 12,982,847,527.44
  5. Step 5: Solve for x
    x = 12,982,847,527.44/129,822.06
  6. Step 6: Final answer
    x = 100,004.94

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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.