Home / 136,000.78-202,634.24-128,361.16

Finding the Fourth Proportional to 136,000.78, 202,634.24 and 128,361.16

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Solution

The fourth proportional to 136,000.78, 202,634.24 and 128,361.16 is: 191,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,000.78 : 202,634.24 = 128,361.16 : x
  2. Step 2: Convert to fraction form
    136,000.78/202,634.24 = 128,361.16/x
  3. Step 3: Cross multiply
    136,000.78x = 202,634.24 × 128,361.16
  4. Step 4: Simplify right side
    136,000.78x = 26,010,366,102.12
  5. Step 5: Solve for x
    x = 26,010,366,102.12/136,000.78
  6. Step 6: Final answer
    x = 191,251.60

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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.