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Finding the Fourth Proportional to 160,107.65, 240,152.82 and 81,219.84

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Solution

The fourth proportional to 160,107.65, 240,152.82 and 81,219.84 is: 121,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,107.65 : 240,152.82 = 81,219.84 : x
  2. Step 2: Convert to fraction form
    160,107.65/240,152.82 = 81,219.84/x
  3. Step 3: Cross multiply
    160,107.65x = 240,152.82 × 81,219.84
  4. Step 4: Simplify right side
    160,107.65x = 19,505,173,615.95
  5. Step 5: Solve for x
    x = 19,505,173,615.95/160,107.65
  6. Step 6: Final answer
    x = 121,825.37

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1.5x scale

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.