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Finding the Fourth Proportional to 189,051.30, 260,883.99 and 104,168.70

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Solution

The fourth proportional to 189,051.30, 260,883.99 and 104,168.70 is: 143,749.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,051.30 : 260,883.99 = 104,168.70 : x
  2. Step 2: Convert to fraction form
    189,051.30/260,883.99 = 104,168.70/x
  3. Step 3: Cross multiply
    189,051.30x = 260,883.99 × 104,168.70
  4. Step 4: Simplify right side
    189,051.30x = 27,175,946,089.11
  5. Step 5: Solve for x
    x = 27,175,946,089.11/189,051.30
  6. Step 6: Final answer
    x = 143,749.06

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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.