Home / 104,176.89-143,739.23-61,728.03

Finding the Fourth Proportional to 104,176.89, 143,739.23 and 61,728.03

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Solution

The fourth proportional to 104,176.89, 143,739.23 and 61,728.03 is: 85,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,176.89 : 143,739.23 = 61,728.03 : x
  2. Step 2: Convert to fraction form
    104,176.89/143,739.23 = 61,728.03/x
  3. Step 3: Cross multiply
    104,176.89x = 143,739.23 × 61,728.03
  4. Step 4: Simplify right side
    104,176.89x = 8,872,739,192.98
  5. Step 5: Solve for x
    x = 8,872,739,192.98/104,176.89
  6. Step 6: Final answer
    x = 85,169.94

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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.