Home / 105,253.08-157,992.01-45,311.22

Finding the Fourth Proportional to 105,253.08, 157,992.01 and 45,311.22

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Solution

The fourth proportional to 105,253.08, 157,992.01 and 45,311.22 is: 68,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.08 : 157,992.01 = 45,311.22 : x
  2. Step 2: Convert to fraction form
    105,253.08/157,992.01 = 45,311.22/x
  3. Step 3: Cross multiply
    105,253.08x = 157,992.01 × 45,311.22
  4. Step 4: Simplify right side
    105,253.08x = 7,158,810,723.35
  5. Step 5: Solve for x
    x = 7,158,810,723.35/105,253.08
  6. Step 6: Final answer
    x = 68,015.21

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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.