Home / 136,626.90-203,566.64-128,987.44

Finding the Fourth Proportional to 136,626.90, 203,566.64 and 128,987.44

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Solution

The fourth proportional to 136,626.90, 203,566.64 and 128,987.44 is: 192,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,626.90 : 203,566.64 = 128,987.44 : x
  2. Step 2: Convert to fraction form
    136,626.90/203,566.64 = 128,987.44/x
  3. Step 3: Cross multiply
    136,626.90x = 203,566.64 × 128,987.44
  4. Step 4: Simplify right side
    136,626.90x = 26,257,539,697.48
  5. Step 5: Solve for x
    x = 26,257,539,697.48/136,626.90
  6. Step 6: Final answer
    x = 192,184.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.