Home / 68,525.48-102,639.66-66,852.92

Finding the Fourth Proportional to 68,525.48, 102,639.66 and 66,852.92

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Solution

The fourth proportional to 68,525.48, 102,639.66 and 66,852.92 is: 100,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,525.48 : 102,639.66 = 66,852.92 : x
  2. Step 2: Convert to fraction form
    68,525.48/102,639.66 = 66,852.92/x
  3. Step 3: Cross multiply
    68,525.48x = 102,639.66 × 66,852.92
  4. Step 4: Simplify right side
    68,525.48x = 6,861,760,978.81
  5. Step 5: Solve for x
    x = 6,861,760,978.81/68,525.48
  6. Step 6: Final answer
    x = 100,134.45

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1.5x scale

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.