Home / 191,899.22-287,706.66-91,964.25

Finding the Fourth Proportional to 191,899.22, 287,706.66 and 91,964.25

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Solution

The fourth proportional to 191,899.22, 287,706.66 and 91,964.25 is: 137,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,899.22 : 287,706.66 = 91,964.25 : x
  2. Step 2: Convert to fraction form
    191,899.22/287,706.66 = 91,964.25/x
  3. Step 3: Cross multiply
    191,899.22x = 287,706.66 × 91,964.25
  4. Step 4: Simplify right side
    191,899.22x = 26,458,727,206.91
  5. Step 5: Solve for x
    x = 26,458,727,206.91/191,899.22
  6. Step 6: Final answer
    x = 137,878.25

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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.