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Finding the Fourth Proportional to 101,271.83, 139,767 and 61,005.92

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Solution

The fourth proportional to 101,271.83, 139,767 and 61,005.92 is: 84,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,271.83 : 139,767 = 61,005.92 : x
  2. Step 2: Convert to fraction form
    101,271.83/139,767 = 61,005.92/x
  3. Step 3: Cross multiply
    101,271.83x = 139,767 × 61,005.92
  4. Step 4: Simplify right side
    101,271.83x = 8,526,614,420.64
  5. Step 5: Solve for x
    x = 8,526,614,420.64/101,271.83
  6. Step 6: Final answer
    x = 84,195.32

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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.