Home / 105,907.36-146,178.60-65,596.96

Finding the Fourth Proportional to 105,907.36, 146,178.60 and 65,596.96

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Solution

The fourth proportional to 105,907.36, 146,178.60 and 65,596.96 is: 90,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,907.36 : 146,178.60 = 65,596.96 : x
  2. Step 2: Convert to fraction form
    105,907.36/146,178.60 = 65,596.96/x
  3. Step 3: Cross multiply
    105,907.36x = 146,178.60 × 65,596.96
  4. Step 4: Simplify right side
    105,907.36x = 9,588,871,777.06
  5. Step 5: Solve for x
    x = 9,588,871,777.06/105,907.36
  6. Step 6: Final answer
    x = 90,540.18

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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.