Home / 136,233.36-188,017.20-79,641.36

Finding the Fourth Proportional to 136,233.36, 188,017.20 and 79,641.36

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Solution

The fourth proportional to 136,233.36, 188,017.20 and 79,641.36 is: 109,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,233.36 : 188,017.20 = 79,641.36 : x
  2. Step 2: Convert to fraction form
    136,233.36/188,017.20 = 79,641.36/x
  3. Step 3: Cross multiply
    136,233.36x = 188,017.20 × 79,641.36
  4. Step 4: Simplify right side
    136,233.36x = 14,973,945,511.39
  5. Step 5: Solve for x
    x = 14,973,945,511.39/136,233.36
  6. Step 6: Final answer
    x = 109,913.94

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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.