Home / 76,156.74-105,125.75-68,185.13

Finding the Fourth Proportional to 76,156.74, 105,125.75 and 68,185.13

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Solution

The fourth proportional to 76,156.74, 105,125.75 and 68,185.13 is: 94,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.74 : 105,125.75 = 68,185.13 : x
  2. Step 2: Convert to fraction form
    76,156.74/105,125.75 = 68,185.13/x
  3. Step 3: Cross multiply
    76,156.74x = 105,125.75 × 68,185.13
  4. Step 4: Simplify right side
    76,156.74x = 7,168,012,063.54
  5. Step 5: Solve for x
    x = 7,168,012,063.54/76,156.74
  6. Step 6: Final answer
    x = 94,121.83

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1.5x scale

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.