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Finding the Fourth Proportional to 101,858.60, 152,802.30 and 31,730.60

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Solution

The fourth proportional to 101,858.60, 152,802.30 and 31,730.60 is: 47,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,858.60 : 152,802.30 = 31,730.60 : x
  2. Step 2: Convert to fraction form
    101,858.60/152,802.30 = 31,730.60/x
  3. Step 3: Cross multiply
    101,858.60x = 152,802.30 × 31,730.60
  4. Step 4: Simplify right side
    101,858.60x = 4,848,508,660.38
  5. Step 5: Solve for x
    x = 4,848,508,660.38/101,858.60
  6. Step 6: Final answer
    x = 47,600.39

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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.