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Finding the Fourth Proportional to 188,891.79, 260,676.41 and 104,011.89

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Solution

The fourth proportional to 188,891.79, 260,676.41 and 104,011.89 is: 143,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,891.79 : 260,676.41 = 104,011.89 : x
  2. Step 2: Convert to fraction form
    188,891.79/260,676.41 = 104,011.89/x
  3. Step 3: Cross multiply
    188,891.79x = 260,676.41 × 104,011.89
  4. Step 4: Simplify right side
    188,891.79x = 27,113,445,562.46
  5. Step 5: Solve for x
    x = 27,113,445,562.46/188,891.79
  6. Step 6: Final answer
    x = 143,539.57

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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.