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Finding the Fourth Proportional to 127,148.40, 190,722.60 and 33,663.60

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Solution

The fourth proportional to 127,148.40, 190,722.60 and 33,663.60 is: 50,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,148.40 : 190,722.60 = 33,663.60 : x
  2. Step 2: Convert to fraction form
    127,148.40/190,722.60 = 33,663.60/x
  3. Step 3: Cross multiply
    127,148.40x = 190,722.60 × 33,663.60
  4. Step 4: Simplify right side
    127,148.40x = 6,420,409,317.36
  5. Step 5: Solve for x
    x = 6,420,409,317.36/127,148.40
  6. Step 6: Final answer
    x = 50,495.40

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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.