Home / 137,830.89-190,227.20-84,147.03

Finding the Fourth Proportional to 137,830.89, 190,227.20 and 84,147.03

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Solution

The fourth proportional to 137,830.89, 190,227.20 and 84,147.03 is: 116,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,830.89 : 190,227.20 = 84,147.03 : x
  2. Step 2: Convert to fraction form
    137,830.89/190,227.20 = 84,147.03/x
  3. Step 3: Cross multiply
    137,830.89x = 190,227.20 × 84,147.03
  4. Step 4: Simplify right side
    137,830.89x = 16,007,053,905.22
  5. Step 5: Solve for x
    x = 16,007,053,905.22/137,830.89
  6. Step 6: Final answer
    x = 116,135.46

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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.