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Finding the Fourth Proportional to 189,045.72, 260,894.74 and 104,162.76

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Solution

The fourth proportional to 189,045.72, 260,894.74 and 104,162.76 is: 143,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,045.72 : 260,894.74 = 104,162.76 : x
  2. Step 2: Convert to fraction form
    189,045.72/260,894.74 = 104,162.76/x
  3. Step 3: Cross multiply
    189,045.72x = 260,894.74 × 104,162.76
  4. Step 4: Simplify right side
    189,045.72x = 27,175,516,187.88
  5. Step 5: Solve for x
    x = 27,175,516,187.88/189,045.72
  6. Step 6: Final answer
    x = 143,751.03

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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.