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Finding the Fourth Proportional to 145,056, 217,917.54 and 103,038.24

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Solution

The fourth proportional to 145,056, 217,917.54 and 103,038.24 is: 154,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,056 : 217,917.54 = 103,038.24 : x
  2. Step 2: Convert to fraction form
    145,056/217,917.54 = 103,038.24/x
  3. Step 3: Cross multiply
    145,056x = 217,917.54 × 103,038.24
  4. Step 4: Simplify right side
    145,056x = 22,453,839,786.73
  5. Step 5: Solve for x
    x = 22,453,839,786.73/145,056
  6. Step 6: Final answer
    x = 154,794.28

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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.