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Finding the Fourth Proportional to 160,113.98, 240,321.45 and 81,284.78

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Solution

The fourth proportional to 160,113.98, 240,321.45 and 81,284.78 is: 122,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,113.98 : 240,321.45 = 81,284.78 : x
  2. Step 2: Convert to fraction form
    160,113.98/240,321.45 = 81,284.78/x
  3. Step 3: Cross multiply
    160,113.98x = 240,321.45 × 81,284.78
  4. Step 4: Simplify right side
    160,113.98x = 19,534,476,192.53
  5. Step 5: Solve for x
    x = 19,534,476,192.53/160,113.98
  6. Step 6: Final answer
    x = 122,003.56

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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.