Home / 137,757.06-190,055.85-90,037.95

Finding the Fourth Proportional to 137,757.06, 190,055.85 and 90,037.95

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Solution

The fourth proportional to 137,757.06, 190,055.85 and 90,037.95 is: 124,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,757.06 : 190,055.85 = 90,037.95 : x
  2. Step 2: Convert to fraction form
    137,757.06/190,055.85 = 90,037.95/x
  3. Step 3: Cross multiply
    137,757.06x = 190,055.85 × 90,037.95
  4. Step 4: Simplify right side
    137,757.06x = 17,112,239,119.51
  5. Step 5: Solve for x
    x = 17,112,239,119.51/137,757.06
  6. Step 6: Final answer
    x = 124,220.41

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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.