Home / 112,621.72-168,596.02-68,113.84

Finding the Fourth Proportional to 112,621.72, 168,596.02 and 68,113.84

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Solution

The fourth proportional to 112,621.72, 168,596.02 and 68,113.84 is: 101,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,621.72 : 168,596.02 = 68,113.84 : x
  2. Step 2: Convert to fraction form
    112,621.72/168,596.02 = 68,113.84/x
  3. Step 3: Cross multiply
    112,621.72x = 168,596.02 × 68,113.84
  4. Step 4: Simplify right side
    112,621.72x = 11,483,722,330.92
  5. Step 5: Solve for x
    x = 11,483,722,330.92/112,621.72
  6. Step 6: Final answer
    x = 101,967.21

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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.