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Finding the Fourth Proportional to 101,230.16, 139,714.74 and 58,813.29

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Solution

The fourth proportional to 101,230.16, 139,714.74 and 58,813.29 is: 81,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,230.16 : 139,714.74 = 58,813.29 : x
  2. Step 2: Convert to fraction form
    101,230.16/139,714.74 = 58,813.29/x
  3. Step 3: Cross multiply
    101,230.16x = 139,714.74 × 58,813.29
  4. Step 4: Simplify right side
    101,230.16x = 8,217,083,520.89
  5. Step 5: Solve for x
    x = 8,217,083,520.89/101,230.16
  6. Step 6: Final answer
    x = 81,172.29

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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.