Home / 136,044.36-187,742.88-75,621.60

Finding the Fourth Proportional to 136,044.36, 187,742.88 and 75,621.60

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Solution

The fourth proportional to 136,044.36, 187,742.88 and 75,621.60 is: 104,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,044.36 : 187,742.88 = 75,621.60 : x
  2. Step 2: Convert to fraction form
    136,044.36/187,742.88 = 75,621.60/x
  3. Step 3: Cross multiply
    136,044.36x = 187,742.88 × 75,621.60
  4. Step 4: Simplify right side
    136,044.36x = 14,197,416,974.21
  5. Step 5: Solve for x
    x = 14,197,416,974.21/136,044.36
  6. Step 6: Final answer
    x = 104,358.73

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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.