Home / 136,934.40-205,467.36-66,775.44

Finding the Fourth Proportional to 136,934.40, 205,467.36 and 66,775.44

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Solution

The fourth proportional to 136,934.40, 205,467.36 and 66,775.44 is: 100,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,934.40 : 205,467.36 = 66,775.44 : x
  2. Step 2: Convert to fraction form
    136,934.40/205,467.36 = 66,775.44/x
  3. Step 3: Cross multiply
    136,934.40x = 205,467.36 × 66,775.44
  4. Step 4: Simplify right side
    136,934.40x = 13,720,173,369.64
  5. Step 5: Solve for x
    x = 13,720,173,369.64/136,934.40
  6. Step 6: Final answer
    x = 100,195.23

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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.