Home / 127,119.38-190,706.40-42,881.60

Finding the Fourth Proportional to 127,119.38, 190,706.40 and 42,881.60

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Solution

The fourth proportional to 127,119.38, 190,706.40 and 42,881.60 is: 64,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,119.38 : 190,706.40 = 42,881.60 : x
  2. Step 2: Convert to fraction form
    127,119.38/190,706.40 = 42,881.60/x
  3. Step 3: Cross multiply
    127,119.38x = 190,706.40 × 42,881.60
  4. Step 4: Simplify right side
    127,119.38x = 8,177,796,039.01
  5. Step 5: Solve for x
    x = 8,177,796,039.01/127,119.38
  6. Step 6: Final answer
    x = 64,331.63

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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.