Home / 189,518.34-261,528.57-104,635.20

Finding the Fourth Proportional to 189,518.34, 261,528.57 and 104,635.20

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Solution

The fourth proportional to 189,518.34, 261,528.57 and 104,635.20 is: 144,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,518.34 : 261,528.57 = 104,635.20 : x
  2. Step 2: Convert to fraction form
    189,518.34/261,528.57 = 104,635.20/x
  3. Step 3: Cross multiply
    189,518.34x = 261,528.57 × 104,635.20
  4. Step 4: Simplify right side
    189,518.34x = 27,365,094,227.66
  5. Step 5: Solve for x
    x = 27,365,094,227.66/189,518.34
  6. Step 6: Final answer
    x = 144,392.86

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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.