Home / 189,512.84-261,520.98-104,629.70

Finding the Fourth Proportional to 189,512.84, 261,520.98 and 104,629.70

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Solution

The fourth proportional to 189,512.84, 261,520.98 and 104,629.70 is: 144,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,512.84 : 261,520.98 = 104,629.70 : x
  2. Step 2: Convert to fraction form
    189,512.84/261,520.98 = 104,629.70/x
  3. Step 3: Cross multiply
    189,512.84x = 261,520.98 × 104,629.70
  4. Step 4: Simplify right side
    189,512.84x = 27,362,861,681.11
  5. Step 5: Solve for x
    x = 27,362,861,681.11/189,512.84
  6. Step 6: Final answer
    x = 144,385.27

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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.