Home / 191,641.11-287,255.26-91,588.60

Finding the Fourth Proportional to 191,641.11, 287,255.26 and 91,588.60

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Solution

The fourth proportional to 191,641.11, 287,255.26 and 91,588.60 is: 137,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,641.11 : 287,255.26 = 91,588.60 : x
  2. Step 2: Convert to fraction form
    191,641.11/287,255.26 = 91,588.60/x
  3. Step 3: Cross multiply
    191,641.11x = 287,255.26 × 91,588.60
  4. Step 4: Simplify right side
    191,641.11x = 26,309,307,106.04
  5. Step 5: Solve for x
    x = 26,309,307,106.04/191,641.11
  6. Step 6: Final answer
    x = 137,284.26

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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.