Home / 155,742.80-233,450.17-80,783.37

Finding the Fourth Proportional to 155,742.80, 233,450.17 and 80,783.37

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Solution

The fourth proportional to 155,742.80, 233,450.17 and 80,783.37 is: 121,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,742.80 : 233,450.17 = 80,783.37 : x
  2. Step 2: Convert to fraction form
    155,742.80/233,450.17 = 80,783.37/x
  3. Step 3: Cross multiply
    155,742.80x = 233,450.17 × 80,783.37
  4. Step 4: Simplify right side
    155,742.80x = 18,858,891,257.71
  5. Step 5: Solve for x
    x = 18,858,891,257.71/155,742.80
  6. Step 6: Final answer
    x = 121,089.98

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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.