Home / 105,889.21-146,126.10-58,142.14

Finding the Fourth Proportional to 105,889.21, 146,126.10 and 58,142.14

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Solution

The fourth proportional to 105,889.21, 146,126.10 and 58,142.14 is: 80,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,889.21 : 146,126.10 = 58,142.14 : x
  2. Step 2: Convert to fraction form
    105,889.21/146,126.10 = 58,142.14/x
  3. Step 3: Cross multiply
    105,889.21x = 146,126.10 × 58,142.14
  4. Step 4: Simplify right side
    105,889.21x = 8,496,084,163.85
  5. Step 5: Solve for x
    x = 8,496,084,163.85/105,889.21
  6. Step 6: Final answer
    x = 80,235.60

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1.5x scale

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.