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Finding the Fourth Proportional to 142,560, 213,840 and 44,064

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Solution

The fourth proportional to 142,560, 213,840 and 44,064 is: 66,096

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,560 : 213,840 = 44,064 : x
  2. Step 2: Convert to fraction form
    142,560/213,840 = 44,064/x
  3. Step 3: Cross multiply
    142,560x = 213,840 × 44,064
  4. Step 4: Simplify right side
    142,560x = 9,422,645,760
  5. Step 5: Solve for x
    x = 9,422,645,760/142,560
  6. Step 6: Final answer
    x = 66,096

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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.