Home / 100,734.91-139,018.89-58,285.24

Finding the Fourth Proportional to 100,734.91, 139,018.89 and 58,285.24

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Solution

The fourth proportional to 100,734.91, 139,018.89 and 58,285.24 is: 80,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,734.91 : 139,018.89 = 58,285.24 : x
  2. Step 2: Convert to fraction form
    100,734.91/139,018.89 = 58,285.24/x
  3. Step 3: Cross multiply
    100,734.91x = 139,018.89 × 58,285.24
  4. Step 4: Simplify right side
    100,734.91x = 8,102,749,368.18
  5. Step 5: Solve for x
    x = 8,102,749,368.18/100,734.91
  6. Step 6: Final answer
    x = 80,436.36

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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.