Home / 105,902.40-146,201.04-65,596.80

Finding the Fourth Proportional to 105,902.40, 146,201.04 and 65,596.80

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Solution

The fourth proportional to 105,902.40, 146,201.04 and 65,596.80 is: 90,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,902.40 : 146,201.04 = 65,596.80 : x
  2. Step 2: Convert to fraction form
    105,902.40/146,201.04 = 65,596.80/x
  3. Step 3: Cross multiply
    105,902.40x = 146,201.04 × 65,596.80
  4. Step 4: Simplify right side
    105,902.40x = 9,590,320,380.67
  5. Step 5: Solve for x
    x = 9,590,320,380.67/105,902.40
  6. Step 6: Final answer
    x = 90,558.10

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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.