Home / 136,977.31-205,446.84-47,018.62

Finding the Fourth Proportional to 136,977.31, 205,446.84 and 47,018.62

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Solution

The fourth proportional to 136,977.31, 205,446.84 and 47,018.62 is: 70,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,977.31 : 205,446.84 = 47,018.62 : x
  2. Step 2: Convert to fraction form
    136,977.31/205,446.84 = 47,018.62/x
  3. Step 3: Cross multiply
    136,977.31x = 205,446.84 × 47,018.62
  4. Step 4: Simplify right side
    136,977.31x = 9,659,826,900.16
  5. Step 5: Solve for x
    x = 9,659,826,900.16/136,977.31
  6. Step 6: Final answer
    x = 70,521.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.