Home / 130,828.40-195,724.20-113,490.80

Finding the Fourth Proportional to 130,828.40, 195,724.20 and 113,490.80

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Solution

The fourth proportional to 130,828.40, 195,724.20 and 113,490.80 is: 169,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,828.40 : 195,724.20 = 113,490.80 : x
  2. Step 2: Convert to fraction form
    130,828.40/195,724.20 = 113,490.80/x
  3. Step 3: Cross multiply
    130,828.40x = 195,724.20 × 113,490.80
  4. Step 4: Simplify right side
    130,828.40x = 22,212,896,037.36
  5. Step 5: Solve for x
    x = 22,212,896,037.36/130,828.40
  6. Step 6: Final answer
    x = 169,786.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.