Home / 128,109.60-192,164.40-57,032.10

Finding the Fourth Proportional to 128,109.60, 192,164.40 and 57,032.10

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Solution

The fourth proportional to 128,109.60, 192,164.40 and 57,032.10 is: 85,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,109.60 : 192,164.40 = 57,032.10 : x
  2. Step 2: Convert to fraction form
    128,109.60/192,164.40 = 57,032.10/x
  3. Step 3: Cross multiply
    128,109.60x = 192,164.40 × 57,032.10
  4. Step 4: Simplify right side
    128,109.60x = 10,959,539,277.24
  5. Step 5: Solve for x
    x = 10,959,539,277.24/128,109.60
  6. Step 6: Final answer
    x = 85,548.15

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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.