Home / 136,727.20-205,090.80-83,965.60

Finding the Fourth Proportional to 136,727.20, 205,090.80 and 83,965.60

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Solution

The fourth proportional to 136,727.20, 205,090.80 and 83,965.60 is: 125,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,727.20 : 205,090.80 = 83,965.60 : x
  2. Step 2: Convert to fraction form
    136,727.20/205,090.80 = 83,965.60/x
  3. Step 3: Cross multiply
    136,727.20x = 205,090.80 × 83,965.60
  4. Step 4: Simplify right side
    136,727.20x = 17,220,572,076.48
  5. Step 5: Solve for x
    x = 17,220,572,076.48/136,727.20
  6. Step 6: Final answer
    x = 125,948.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.