Home / 192,128.78-287,602.62-163,785.26

Finding the Fourth Proportional to 192,128.78, 287,602.62 and 163,785.26

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Solution

The fourth proportional to 192,128.78, 287,602.62 and 163,785.26 is: 245,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,128.78 : 287,602.62 = 163,785.26 : x
  2. Step 2: Convert to fraction form
    192,128.78/287,602.62 = 163,785.26/x
  3. Step 3: Cross multiply
    192,128.78x = 287,602.62 × 163,785.26
  4. Step 4: Simplify right side
    192,128.78x = 47,105,069,893.38
  5. Step 5: Solve for x
    x = 47,105,069,893.38/192,128.78
  6. Step 6: Final answer
    x = 245,174.46

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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.