Home / 191,625.66-287,561.46-128,517.02

Finding the Fourth Proportional to 191,625.66, 287,561.46 and 128,517.02

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Solution

The fourth proportional to 191,625.66, 287,561.46 and 128,517.02 is: 192,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,625.66 : 287,561.46 = 128,517.02 : x
  2. Step 2: Convert to fraction form
    191,625.66/287,561.46 = 128,517.02/x
  3. Step 3: Cross multiply
    191,625.66x = 287,561.46 × 128,517.02
  4. Step 4: Simplify right side
    191,625.66x = 36,956,541,906.05
  5. Step 5: Solve for x
    x = 36,956,541,906.05/191,625.66
  6. Step 6: Final answer
    x = 192,858.00

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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.