Home / 127,222.07-190,833.12-42,982.47

Finding the Fourth Proportional to 127,222.07, 190,833.12 and 42,982.47

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Solution

The fourth proportional to 127,222.07, 190,833.12 and 42,982.47 is: 64,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,222.07 : 190,833.12 = 42,982.47 : x
  2. Step 2: Convert to fraction form
    127,222.07/190,833.12 = 42,982.47/x
  3. Step 3: Cross multiply
    127,222.07x = 190,833.12 × 42,982.47
  4. Step 4: Simplify right side
    127,222.07x = 8,202,478,855.41
  5. Step 5: Solve for x
    x = 8,202,478,855.41/127,222.07
  6. Step 6: Final answer
    x = 64,473.71

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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.