Home / 107,025.74-147,639.53-66,176.82

Finding the Fourth Proportional to 107,025.74, 147,639.53 and 66,176.82

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Solution

The fourth proportional to 107,025.74, 147,639.53 and 66,176.82 is: 91,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,025.74 : 147,639.53 = 66,176.82 : x
  2. Step 2: Convert to fraction form
    107,025.74/147,639.53 = 66,176.82/x
  3. Step 3: Cross multiply
    107,025.74x = 147,639.53 × 66,176.82
  4. Step 4: Simplify right side
    107,025.74x = 9,770,314,601.69
  5. Step 5: Solve for x
    x = 9,770,314,601.69/107,025.74
  6. Step 6: Final answer
    x = 91,289.39

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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.