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Finding the Fourth Proportional to 101,549.55, 140,094.26 and 61,240.91

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Solution

The fourth proportional to 101,549.55, 140,094.26 and 61,240.91 is: 84,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,549.55 : 140,094.26 = 61,240.91 : x
  2. Step 2: Convert to fraction form
    101,549.55/140,094.26 = 61,240.91/x
  3. Step 3: Cross multiply
    101,549.55x = 140,094.26 × 61,240.91
  4. Step 4: Simplify right side
    101,549.55x = 8,579,499,979.18
  5. Step 5: Solve for x
    x = 8,579,499,979.18/101,549.55
  6. Step 6: Final answer
    x = 84,485.85

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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.