Home / 192,734.72-289,051-87,530.28

Finding the Fourth Proportional to 192,734.72, 289,051 and 87,530.28

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Solution

The fourth proportional to 192,734.72, 289,051 and 87,530.28 is: 131,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,734.72 : 289,051 = 87,530.28 : x
  2. Step 2: Convert to fraction form
    192,734.72/289,051 = 87,530.28/x
  3. Step 3: Cross multiply
    192,734.72x = 289,051 × 87,530.28
  4. Step 4: Simplify right side
    192,734.72x = 25,300,714,964.28
  5. Step 5: Solve for x
    x = 25,300,714,964.28/192,734.72
  6. Step 6: Final answer
    x = 131,272.22

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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.