Home / 136,639.40-188,533.70-82,952.68

Finding the Fourth Proportional to 136,639.40, 188,533.70 and 82,952.68

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Solution

The fourth proportional to 136,639.40, 188,533.70 and 82,952.68 is: 114,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,639.40 : 188,533.70 = 82,952.68 : x
  2. Step 2: Convert to fraction form
    136,639.40/188,533.70 = 82,952.68/x
  3. Step 3: Cross multiply
    136,639.40x = 188,533.70 × 82,952.68
  4. Step 4: Simplify right side
    136,639.40x = 15,639,375,685.32
  5. Step 5: Solve for x
    x = 15,639,375,685.32/136,639.40
  6. Step 6: Final answer
    x = 114,457.29

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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.