Home / 129,852.37-179,191.61-81,480.35

Finding the Fourth Proportional to 129,852.37, 179,191.61 and 81,480.35

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Solution

The fourth proportional to 129,852.37, 179,191.61 and 81,480.35 is: 112,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,852.37 : 179,191.61 = 81,480.35 : x
  2. Step 2: Convert to fraction form
    129,852.37/179,191.61 = 81,480.35/x
  3. Step 3: Cross multiply
    129,852.37x = 179,191.61 × 81,480.35
  4. Step 4: Simplify right side
    129,852.37x = 14,600,594,438.04
  5. Step 5: Solve for x
    x = 14,600,594,438.04/129,852.37
  6. Step 6: Final answer
    x = 112,439.96

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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.