Home / 189,510.31-261,523.48-104,626.77

Finding the Fourth Proportional to 189,510.31, 261,523.48 and 104,626.77

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Solution

The fourth proportional to 189,510.31, 261,523.48 and 104,626.77 is: 144,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,510.31 : 261,523.48 = 104,626.77 : x
  2. Step 2: Convert to fraction form
    189,510.31/261,523.48 = 104,626.77/x
  3. Step 3: Cross multiply
    189,510.31x = 261,523.48 × 104,626.77
  4. Step 4: Simplify right side
    189,510.31x = 27,362,356,991.56
  5. Step 5: Solve for x
    x = 27,362,356,991.56/189,510.31
  6. Step 6: Final answer
    x = 144,384.53

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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.