Home / 170,890.75-256,368.93-77,396.50

Finding the Fourth Proportional to 170,890.75, 256,368.93 and 77,396.50

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Solution

The fourth proportional to 170,890.75, 256,368.93 and 77,396.50 is: 116,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,890.75 : 256,368.93 = 77,396.50 : x
  2. Step 2: Convert to fraction form
    170,890.75/256,368.93 = 77,396.50/x
  3. Step 3: Cross multiply
    170,890.75x = 256,368.93 × 77,396.50
  4. Step 4: Simplify right side
    170,890.75x = 19,842,057,890.75
  5. Step 5: Solve for x
    x = 19,842,057,890.75/170,890.75
  6. Step 6: Final answer
    x = 116,109.61

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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.