Home / 137,798.33-190,150.07-83,370.78

Finding the Fourth Proportional to 137,798.33, 190,150.07 and 83,370.78

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Solution

The fourth proportional to 137,798.33, 190,150.07 and 83,370.78 is: 115,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,798.33 : 190,150.07 = 83,370.78 : x
  2. Step 2: Convert to fraction form
    137,798.33/190,150.07 = 83,370.78/x
  3. Step 3: Cross multiply
    137,798.33x = 190,150.07 × 83,370.78
  4. Step 4: Simplify right side
    137,798.33x = 15,852,959,236.10
  5. Step 5: Solve for x
    x = 15,852,959,236.10/137,798.33
  6. Step 6: Final answer
    x = 115,044.64

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1.5x scale

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.