Home / 189,140.90-261,010.23-104,257.76

Finding the Fourth Proportional to 189,140.90, 261,010.23 and 104,257.76

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Solution

The fourth proportional to 189,140.90, 261,010.23 and 104,257.76 is: 143,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,140.90 : 261,010.23 = 104,257.76 : x
  2. Step 2: Convert to fraction form
    189,140.90/261,010.23 = 104,257.76/x
  3. Step 3: Cross multiply
    189,140.90x = 261,010.23 × 104,257.76
  4. Step 4: Simplify right side
    189,140.90x = 27,212,341,916.88
  5. Step 5: Solve for x
    x = 27,212,341,916.88/189,140.90
  6. Step 6: Final answer
    x = 143,873.39

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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.