Home / 98,834.22-136,356.75-68,611.50

Finding the Fourth Proportional to 98,834.22, 136,356.75 and 68,611.50

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Solution

The fourth proportional to 98,834.22, 136,356.75 and 68,611.50 is: 94,659.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,834.22 : 136,356.75 = 68,611.50 : x
  2. Step 2: Convert to fraction form
    98,834.22/136,356.75 = 68,611.50/x
  3. Step 3: Cross multiply
    98,834.22x = 136,356.75 × 68,611.50
  4. Step 4: Simplify right side
    98,834.22x = 9,355,641,152.63
  5. Step 5: Solve for x
    x = 9,355,641,152.63/98,834.22
  6. Step 6: Final answer
    x = 94,659.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.