Home / 127,133.67-190,694.30-47,187.20

Finding the Fourth Proportional to 127,133.67, 190,694.30 and 47,187.20

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Solution

The fourth proportional to 127,133.67, 190,694.30 and 47,187.20 is: 70,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,133.67 : 190,694.30 = 47,187.20 : x
  2. Step 2: Convert to fraction form
    127,133.67/190,694.30 = 47,187.20/x
  3. Step 3: Cross multiply
    127,133.67x = 190,694.30 × 47,187.20
  4. Step 4: Simplify right side
    127,133.67x = 8,998,330,072.96
  5. Step 5: Solve for x
    x = 8,998,330,072.96/127,133.67
  6. Step 6: Final answer
    x = 70,778.50

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1.5x scale

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.