Home / 104,878.08-144,730.08-57,132

Finding the Fourth Proportional to 104,878.08, 144,730.08 and 57,132

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Solution

The fourth proportional to 104,878.08, 144,730.08 and 57,132 is: 78,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.08 : 144,730.08 = 57,132 : x
  2. Step 2: Convert to fraction form
    104,878.08/144,730.08 = 57,132/x
  3. Step 3: Cross multiply
    104,878.08x = 144,730.08 × 57,132
  4. Step 4: Simplify right side
    104,878.08x = 8,268,718,930.56
  5. Step 5: Solve for x
    x = 8,268,718,930.56/104,878.08
  6. Step 6: Final answer
    x = 78,841.25

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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.