Home / 124,664.43-171,928.41-81,038.54

Finding the Fourth Proportional to 124,664.43, 171,928.41 and 81,038.54

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Solution

The fourth proportional to 124,664.43, 171,928.41 and 81,038.54 is: 111,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,664.43 : 171,928.41 = 81,038.54 : x
  2. Step 2: Convert to fraction form
    124,664.43/171,928.41 = 81,038.54/x
  3. Step 3: Cross multiply
    124,664.43x = 171,928.41 × 81,038.54
  4. Step 4: Simplify right side
    124,664.43x = 13,932,827,456.85
  5. Step 5: Solve for x
    x = 13,932,827,456.85/124,664.43
  6. Step 6: Final answer
    x = 111,762.65

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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.