Home / 105,986.20-146,261.70-58,240.60

Finding the Fourth Proportional to 105,986.20, 146,261.70 and 58,240.60

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Solution

The fourth proportional to 105,986.20, 146,261.70 and 58,240.60 is: 80,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,986.20 : 146,261.70 = 58,240.60 : x
  2. Step 2: Convert to fraction form
    105,986.20/146,261.70 = 58,240.60/x
  3. Step 3: Cross multiply
    105,986.20x = 146,261.70 × 58,240.60
  4. Step 4: Simplify right side
    105,986.20x = 8,518,369,165.02
  5. Step 5: Solve for x
    x = 8,518,369,165.02/105,986.20
  6. Step 6: Final answer
    x = 80,372.44

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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.