Home / 195,427.40-293,141.10-128,942.60

Finding the Fourth Proportional to 195,427.40, 293,141.10 and 128,942.60

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Solution

The fourth proportional to 195,427.40, 293,141.10 and 128,942.60 is: 193,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,427.40 : 293,141.10 = 128,942.60 : x
  2. Step 2: Convert to fraction form
    195,427.40/293,141.10 = 128,942.60/x
  3. Step 3: Cross multiply
    195,427.40x = 293,141.10 × 128,942.60
  4. Step 4: Simplify right side
    195,427.40x = 37,798,375,600.86
  5. Step 5: Solve for x
    x = 37,798,375,600.86/195,427.40
  6. Step 6: Final answer
    x = 193,413.90

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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.