Home / 76,156.23-105,125.05-68,184.62

Finding the Fourth Proportional to 76,156.23, 105,125.05 and 68,184.62

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Solution

The fourth proportional to 76,156.23, 105,125.05 and 68,184.62 is: 94,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.23 : 105,125.05 = 68,184.62 : x
  2. Step 2: Convert to fraction form
    76,156.23/105,125.05 = 68,184.62/x
  3. Step 3: Cross multiply
    76,156.23x = 105,125.05 × 68,184.62
  4. Step 4: Simplify right side
    76,156.23x = 7,167,911,586.73
  5. Step 5: Solve for x
    x = 7,167,911,586.73/76,156.23
  6. Step 6: Final answer
    x = 94,121.15

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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.