Home / 104,815.80-144,639.96-57,066.30

Finding the Fourth Proportional to 104,815.80, 144,639.96 and 57,066.30

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Solution

The fourth proportional to 104,815.80, 144,639.96 and 57,066.30 is: 78,748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,815.80 : 144,639.96 = 57,066.30 : x
  2. Step 2: Convert to fraction form
    104,815.80/144,639.96 = 57,066.30/x
  3. Step 3: Cross multiply
    104,815.80x = 144,639.96 × 57,066.30
  4. Step 4: Simplify right side
    104,815.80x = 8,254,067,349.35
  5. Step 5: Solve for x
    x = 8,254,067,349.35/104,815.80
  6. Step 6: Final answer
    x = 78,748.31

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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.