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Finding the Fourth Proportional to 101,858, 152,848.44 and 43,490

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Solution

The fourth proportional to 101,858, 152,848.44 and 43,490 is: 65,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,858 : 152,848.44 = 43,490 : x
  2. Step 2: Convert to fraction form
    101,858/152,848.44 = 43,490/x
  3. Step 3: Cross multiply
    101,858x = 152,848.44 × 43,490
  4. Step 4: Simplify right side
    101,858x = 6,647,378,655.60
  5. Step 5: Solve for x
    x = 6,647,378,655.60/101,858
  6. Step 6: Final answer
    x = 65,261.23

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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.