Home / 115,315.65-172,991.30-48,756.06

Finding the Fourth Proportional to 115,315.65, 172,991.30 and 48,756.06

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Solution

The fourth proportional to 115,315.65, 172,991.30 and 48,756.06 is: 73,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,315.65 : 172,991.30 = 48,756.06 : x
  2. Step 2: Convert to fraction form
    115,315.65/172,991.30 = 48,756.06/x
  3. Step 3: Cross multiply
    115,315.65x = 172,991.30 × 48,756.06
  4. Step 4: Simplify right side
    115,315.65x = 8,434,373,958.50
  5. Step 5: Solve for x
    x = 8,434,373,958.50/115,315.65
  6. Step 6: Final answer
    x = 73,141.62

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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.