Home / 189,526.92-261,549.10-104,643.78

Finding the Fourth Proportional to 189,526.92, 261,549.10 and 104,643.78

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Solution

The fourth proportional to 189,526.92, 261,549.10 and 104,643.78 is: 144,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,526.92 : 261,549.10 = 104,643.78 : x
  2. Step 2: Convert to fraction form
    189,526.92/261,549.10 = 104,643.78/x
  3. Step 3: Cross multiply
    189,526.92x = 261,549.10 × 104,643.78
  4. Step 4: Simplify right side
    189,526.92x = 27,369,486,479.60
  5. Step 5: Solve for x
    x = 27,369,486,479.60/189,526.92
  6. Step 6: Final answer
    x = 144,409.49

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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.