Home / 146,147.12-201,669.66-85,706.64

Finding the Fourth Proportional to 146,147.12, 201,669.66 and 85,706.64

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Solution

The fourth proportional to 146,147.12, 201,669.66 and 85,706.64 is: 118,267.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,147.12 : 201,669.66 = 85,706.64 : x
  2. Step 2: Convert to fraction form
    146,147.12/201,669.66 = 85,706.64/x
  3. Step 3: Cross multiply
    146,147.12x = 201,669.66 × 85,706.64
  4. Step 4: Simplify right side
    146,147.12x = 17,284,428,948.54
  5. Step 5: Solve for x
    x = 17,284,428,948.54/146,147.12
  6. Step 6: Final answer
    x = 118,267.33

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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.