Home / 105,341.45-157,872.69-55,319.27

Finding the Fourth Proportional to 105,341.45, 157,872.69 and 55,319.27

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Solution

The fourth proportional to 105,341.45, 157,872.69 and 55,319.27 is: 82,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,341.45 : 157,872.69 = 55,319.27 : x
  2. Step 2: Convert to fraction form
    105,341.45/157,872.69 = 55,319.27/x
  3. Step 3: Cross multiply
    105,341.45x = 157,872.69 × 55,319.27
  4. Step 4: Simplify right side
    105,341.45x = 8,733,401,174.37
  5. Step 5: Solve for x
    x = 8,733,401,174.37/105,341.45
  6. Step 6: Final answer
    x = 82,905.65

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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.