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Finding the Fourth Proportional to 153,245.71, 229,866.26 and 68,946.35

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Solution

The fourth proportional to 153,245.71, 229,866.26 and 68,946.35 is: 103,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,245.71 : 229,866.26 = 68,946.35 : x
  2. Step 2: Convert to fraction form
    153,245.71/229,866.26 = 68,946.35/x
  3. Step 3: Cross multiply
    153,245.71x = 229,866.26 × 68,946.35
  4. Step 4: Simplify right side
    153,245.71x = 15,848,439,615.15
  5. Step 5: Solve for x
    x = 15,848,439,615.15/153,245.71
  6. Step 6: Final answer
    x = 103,418.49

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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.