Home / 138,166.46-190,692.73-80,014.81

Finding the Fourth Proportional to 138,166.46, 190,692.73 and 80,014.81

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Solution

The fourth proportional to 138,166.46, 190,692.73 and 80,014.81 is: 110,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,166.46 : 190,692.73 = 80,014.81 : x
  2. Step 2: Convert to fraction form
    138,166.46/190,692.73 = 80,014.81/x
  3. Step 3: Cross multiply
    138,166.46x = 190,692.73 × 80,014.81
  4. Step 4: Simplify right side
    138,166.46x = 15,258,243,076.49
  5. Step 5: Solve for x
    x = 15,258,243,076.49/138,166.46
  6. Step 6: Final answer
    x = 110,433.77

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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.