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Finding the Fourth Proportional to 134,200.80, 200,782.80 and 87,544.80

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Solution

The fourth proportional to 134,200.80, 200,782.80 and 87,544.80 is: 130,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,200.80 : 200,782.80 = 87,544.80 : x
  2. Step 2: Convert to fraction form
    134,200.80/200,782.80 = 87,544.80/x
  3. Step 3: Cross multiply
    134,200.80x = 200,782.80 × 87,544.80
  4. Step 4: Simplify right side
    134,200.80x = 17,577,490,069.44
  5. Step 5: Solve for x
    x = 17,577,490,069.44/134,200.80
  6. Step 6: Final answer
    x = 130,979.03

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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.