Home / 134,536.80-201,805.20-128,085.60

Finding the Fourth Proportional to 134,536.80, 201,805.20 and 128,085.60

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Solution

The fourth proportional to 134,536.80, 201,805.20 and 128,085.60 is: 192,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,536.80 : 201,805.20 = 128,085.60 : x
  2. Step 2: Convert to fraction form
    134,536.80/201,805.20 = 128,085.60/x
  3. Step 3: Cross multiply
    134,536.80x = 201,805.20 × 128,085.60
  4. Step 4: Simplify right side
    134,536.80x = 25,848,340,125.12
  5. Step 5: Solve for x
    x = 25,848,340,125.12/134,536.80
  6. Step 6: Final answer
    x = 192,128.40

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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.