Home / 136,683.23-188,455.28-112,399.33

Finding the Fourth Proportional to 136,683.23, 188,455.28 and 112,399.33

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Solution

The fourth proportional to 136,683.23, 188,455.28 and 112,399.33 is: 154,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,683.23 : 188,455.28 = 112,399.33 : x
  2. Step 2: Convert to fraction form
    136,683.23/188,455.28 = 112,399.33/x
  3. Step 3: Cross multiply
    136,683.23x = 188,455.28 × 112,399.33
  4. Step 4: Simplify right side
    136,683.23x = 21,182,245,702.69
  5. Step 5: Solve for x
    x = 21,182,245,702.69/136,683.23
  6. Step 6: Final answer
    x = 154,973.27

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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.