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Finding the Fourth Proportional to 160,107.41, 240,152.45 and 81,219.57

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Solution

The fourth proportional to 160,107.41, 240,152.45 and 81,219.57 is: 121,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,107.41 : 240,152.45 = 81,219.57 : x
  2. Step 2: Convert to fraction form
    160,107.41/240,152.45 = 81,219.57/x
  3. Step 3: Cross multiply
    160,107.41x = 240,152.45 × 81,219.57
  4. Step 4: Simplify right side
    160,107.41x = 19,505,078,317.35
  5. Step 5: Solve for x
    x = 19,505,078,317.35/160,107.41
  6. Step 6: Final answer
    x = 121,824.96

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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.