Home / 137,799.36-190,032.48-90,093.60

Finding the Fourth Proportional to 137,799.36, 190,032.48 and 90,093.60

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Solution

The fourth proportional to 137,799.36, 190,032.48 and 90,093.60 is: 124,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,799.36 : 190,032.48 = 90,093.60 : x
  2. Step 2: Convert to fraction form
    137,799.36/190,032.48 = 90,093.60/x
  3. Step 3: Cross multiply
    137,799.36x = 190,032.48 × 90,093.60
  4. Step 4: Simplify right side
    137,799.36x = 17,120,710,240.13
  5. Step 5: Solve for x
    x = 17,120,710,240.13/137,799.36
  6. Step 6: Final answer
    x = 124,243.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.