Home / 102,558.41-141,530.31-57,235.91

Finding the Fourth Proportional to 102,558.41, 141,530.31 and 57,235.91

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Solution

The fourth proportional to 102,558.41, 141,530.31 and 57,235.91 is: 78,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,558.41 : 141,530.31 = 57,235.91 : x
  2. Step 2: Convert to fraction form
    102,558.41/141,530.31 = 57,235.91/x
  3. Step 3: Cross multiply
    102,558.41x = 141,530.31 × 57,235.91
  4. Step 4: Simplify right side
    102,558.41x = 8,100,616,224.62
  5. Step 5: Solve for x
    x = 8,100,616,224.62/102,558.41
  6. Step 6: Final answer
    x = 78,985.39

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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.