Home / 103,246.58-142,481.93-57,305.00

Finding the Fourth Proportional to 103,246.58, 142,481.93 and 57,305.00

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Solution

The fourth proportional to 103,246.58, 142,481.93 and 57,305.00 is: 79,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,246.58 : 142,481.93 = 57,305.00 : x
  2. Step 2: Convert to fraction form
    103,246.58/142,481.93 = 57,305.00/x
  3. Step 3: Cross multiply
    103,246.58x = 142,481.93 × 57,305.00
  4. Step 4: Simplify right side
    103,246.58x = 8,164,925,999.72
  5. Step 5: Solve for x
    x = 8,164,925,999.72/103,246.58
  6. Step 6: Final answer
    x = 79,081.81

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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.