Home / 156,881.44-216,515.28-89,812

Finding the Fourth Proportional to 156,881.44, 216,515.28 and 89,812

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Solution

The fourth proportional to 156,881.44, 216,515.28 and 89,812 is: 123,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,881.44 : 216,515.28 = 89,812 : x
  2. Step 2: Convert to fraction form
    156,881.44/216,515.28 = 89,812/x
  3. Step 3: Cross multiply
    156,881.44x = 216,515.28 × 89,812
  4. Step 4: Simplify right side
    156,881.44x = 19,445,670,327.36
  5. Step 5: Solve for x
    x = 19,445,670,327.36/156,881.44
  6. Step 6: Final answer
    x = 123,951.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.