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Finding the Fourth Proportional to 101,548.37, 140,144.64 and 56,230.57

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Solution

The fourth proportional to 101,548.37, 140,144.64 and 56,230.57 is: 77,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,548.37 : 140,144.64 = 56,230.57 : x
  2. Step 2: Convert to fraction form
    101,548.37/140,144.64 = 56,230.57/x
  3. Step 3: Cross multiply
    101,548.37x = 140,144.64 × 56,230.57
  4. Step 4: Simplify right side
    101,548.37x = 7,880,412,165.65
  5. Step 5: Solve for x
    x = 7,880,412,165.65/101,548.37
  6. Step 6: Final answer
    x = 77,602.55

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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.