Home / 104,783.90-144,731.61-76,057.65

Finding the Fourth Proportional to 104,783.90, 144,731.61 and 76,057.65

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Solution

The fourth proportional to 104,783.90, 144,731.61 and 76,057.65 is: 105,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,783.90 : 144,731.61 = 76,057.65 : x
  2. Step 2: Convert to fraction form
    104,783.90/144,731.61 = 76,057.65/x
  3. Step 3: Cross multiply
    104,783.90x = 144,731.61 × 76,057.65
  4. Step 4: Simplify right side
    104,783.90x = 11,007,946,137.32
  5. Step 5: Solve for x
    x = 11,007,946,137.32/104,783.90
  6. Step 6: Final answer
    x = 105,053.80

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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.