Home / 126,785.04-190,179.72-47,936.40

Finding the Fourth Proportional to 126,785.04, 190,179.72 and 47,936.40

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Solution

The fourth proportional to 126,785.04, 190,179.72 and 47,936.40 is: 71,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,785.04 : 190,179.72 = 47,936.40 : x
  2. Step 2: Convert to fraction form
    126,785.04/190,179.72 = 47,936.40/x
  3. Step 3: Cross multiply
    126,785.04x = 190,179.72 × 47,936.40
  4. Step 4: Simplify right side
    126,785.04x = 9,116,531,129.81
  5. Step 5: Solve for x
    x = 9,116,531,129.81/126,785.04
  6. Step 6: Final answer
    x = 71,905.42

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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.