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Finding the Fourth Proportional to 101,270.58, 139,749.12 and 58,246.82

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Solution

The fourth proportional to 101,270.58, 139,749.12 and 58,246.82 is: 80,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,270.58 : 139,749.12 = 58,246.82 : x
  2. Step 2: Convert to fraction form
    101,270.58/139,749.12 = 58,246.82/x
  3. Step 3: Cross multiply
    101,270.58x = 139,749.12 × 58,246.82
  4. Step 4: Simplify right side
    101,270.58x = 8,139,941,139.05
  5. Step 5: Solve for x
    x = 8,139,941,139.05/101,270.58
  6. Step 6: Final answer
    x = 80,378.14

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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.