Home / 191,531.80-287,297.70-125,176.60

Finding the Fourth Proportional to 191,531.80, 287,297.70 and 125,176.60

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Solution

The fourth proportional to 191,531.80, 287,297.70 and 125,176.60 is: 187,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,531.80 : 287,297.70 = 125,176.60 : x
  2. Step 2: Convert to fraction form
    191,531.80/287,297.70 = 125,176.60/x
  3. Step 3: Cross multiply
    191,531.80x = 287,297.70 × 125,176.60
  4. Step 4: Simplify right side
    191,531.80x = 35,962,949,273.82
  5. Step 5: Solve for x
    x = 35,962,949,273.82/191,531.80
  6. Step 6: Final answer
    x = 187,764.90

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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.