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Finding the Fourth Proportional to 101,330.37, 139,836.06 and 61,045.83

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Solution

The fourth proportional to 101,330.37, 139,836.06 and 61,045.83 is: 84,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,330.37 : 139,836.06 = 61,045.83 : x
  2. Step 2: Convert to fraction form
    101,330.37/139,836.06 = 61,045.83/x
  3. Step 3: Cross multiply
    101,330.37x = 139,836.06 × 61,045.83
  4. Step 4: Simplify right side
    101,330.37x = 8,536,408,346.63
  5. Step 5: Solve for x
    x = 8,536,408,346.63/101,330.37
  6. Step 6: Final answer
    x = 84,243.34

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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.