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Finding the Fourth Proportional to 101,177.94, 139,630.08 and 58,171.38

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Solution

The fourth proportional to 101,177.94, 139,630.08 and 58,171.38 is: 80,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,177.94 : 139,630.08 = 58,171.38 : x
  2. Step 2: Convert to fraction form
    101,177.94/139,630.08 = 58,171.38/x
  3. Step 3: Cross multiply
    101,177.94x = 139,630.08 × 58,171.38
  4. Step 4: Simplify right side
    101,177.94x = 8,122,474,443.11
  5. Step 5: Solve for x
    x = 8,122,474,443.11/101,177.94
  6. Step 6: Final answer
    x = 80,279.10

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1.5x scale

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.