Home / 137,816.82-190,204.80-84,090.42

Finding the Fourth Proportional to 137,816.82, 190,204.80 and 84,090.42

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Solution

The fourth proportional to 137,816.82, 190,204.80 and 84,090.42 is: 116,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,816.82 : 190,204.80 = 84,090.42 : x
  2. Step 2: Convert to fraction form
    137,816.82/190,204.80 = 84,090.42/x
  3. Step 3: Cross multiply
    137,816.82x = 190,204.80 × 84,090.42
  4. Step 4: Simplify right side
    137,816.82x = 15,994,401,518.02
  5. Step 5: Solve for x
    x = 15,994,401,518.02/137,816.82
  6. Step 6: Final answer
    x = 116,055.51

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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.