Home / 127,139.68-190,771.46-52,282.31

Finding the Fourth Proportional to 127,139.68, 190,771.46 and 52,282.31

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Solution

The fourth proportional to 127,139.68, 190,771.46 and 52,282.31 is: 78,448.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,139.68 : 190,771.46 = 52,282.31 : x
  2. Step 2: Convert to fraction form
    127,139.68/190,771.46 = 52,282.31/x
  3. Step 3: Cross multiply
    127,139.68x = 190,771.46 × 52,282.31
  4. Step 4: Simplify right side
    127,139.68x = 9,973,972,349.46
  5. Step 5: Solve for x
    x = 9,973,972,349.46/127,139.68
  6. Step 6: Final answer
    x = 78,448.94

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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.