Home / 136,307.38-188,113.32-82,597.70

Finding the Fourth Proportional to 136,307.38, 188,113.32 and 82,597.70

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Solution

The fourth proportional to 136,307.38, 188,113.32 and 82,597.70 is: 113,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,307.38 : 188,113.32 = 82,597.70 : x
  2. Step 2: Convert to fraction form
    136,307.38/188,113.32 = 82,597.70/x
  3. Step 3: Cross multiply
    136,307.38x = 188,113.32 × 82,597.70
  4. Step 4: Simplify right side
    136,307.38x = 15,537,727,571.36
  5. Step 5: Solve for x
    x = 15,537,727,571.36/136,307.38
  6. Step 6: Final answer
    x = 113,990.36

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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.