Home / 127,155.12-190,750.52-38,398.56

Finding the Fourth Proportional to 127,155.12, 190,750.52 and 38,398.56

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Solution

The fourth proportional to 127,155.12, 190,750.52 and 38,398.56 is: 57,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,155.12 : 190,750.52 = 38,398.56 : x
  2. Step 2: Convert to fraction form
    127,155.12/190,750.52 = 38,398.56/x
  3. Step 3: Cross multiply
    127,155.12x = 190,750.52 × 38,398.56
  4. Step 4: Simplify right side
    127,155.12x = 7,324,545,287.25
  5. Step 5: Solve for x
    x = 7,324,545,287.25/127,155.12
  6. Step 6: Final answer
    x = 57,603.23

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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.