Home / 128,534.84-192,765.24-44,291.60

Finding the Fourth Proportional to 128,534.84, 192,765.24 and 44,291.60

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Solution

The fourth proportional to 128,534.84, 192,765.24 and 44,291.60 is: 66,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,534.84 : 192,765.24 = 44,291.60 : x
  2. Step 2: Convert to fraction form
    128,534.84/192,765.24 = 44,291.60/x
  3. Step 3: Cross multiply
    128,534.84x = 192,765.24 × 44,291.60
  4. Step 4: Simplify right side
    128,534.84x = 8,537,880,903.98
  5. Step 5: Solve for x
    x = 8,537,880,903.98/128,534.84
  6. Step 6: Final answer
    x = 66,424.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.