Home / 109,790.90-164,693.55-30,907.70

Finding the Fourth Proportional to 109,790.90, 164,693.55 and 30,907.70

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Solution

The fourth proportional to 109,790.90, 164,693.55 and 30,907.70 is: 46,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,790.90 : 164,693.55 = 30,907.70 : x
  2. Step 2: Convert to fraction form
    109,790.90/164,693.55 = 30,907.70/x
  3. Step 3: Cross multiply
    109,790.90x = 164,693.55 × 30,907.70
  4. Step 4: Simplify right side
    109,790.90x = 5,090,298,835.34
  5. Step 5: Solve for x
    x = 5,090,298,835.34/109,790.90
  6. Step 6: Final answer
    x = 46,363.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.