Home / 130,611.96-195,946.02-68,265.72

Finding the Fourth Proportional to 130,611.96, 195,946.02 and 68,265.72

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Solution

The fourth proportional to 130,611.96, 195,946.02 and 68,265.72 is: 102,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,611.96 : 195,946.02 = 68,265.72 : x
  2. Step 2: Convert to fraction form
    130,611.96/195,946.02 = 68,265.72/x
  3. Step 3: Cross multiply
    130,611.96x = 195,946.02 × 68,265.72
  4. Step 4: Simplify right side
    130,611.96x = 13,376,396,136.43
  5. Step 5: Solve for x
    x = 13,376,396,136.43/130,611.96
  6. Step 6: Final answer
    x = 102,413.26

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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.