Home / 105,236.24-145,234.56-59,915.12

Finding the Fourth Proportional to 105,236.24, 145,234.56 and 59,915.12

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Solution

The fourth proportional to 105,236.24, 145,234.56 and 59,915.12 is: 82,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.24 : 145,234.56 = 59,915.12 : x
  2. Step 2: Convert to fraction form
    105,236.24/145,234.56 = 59,915.12/x
  3. Step 3: Cross multiply
    105,236.24x = 145,234.56 × 59,915.12
  4. Step 4: Simplify right side
    105,236.24x = 8,701,746,090.55
  5. Step 5: Solve for x
    x = 8,701,746,090.55/105,236.24
  6. Step 6: Final answer
    x = 82,687.73

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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.