Home / 136,915.03-188,929.15-76,484.37

Finding the Fourth Proportional to 136,915.03, 188,929.15 and 76,484.37

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Solution

The fourth proportional to 136,915.03, 188,929.15 and 76,484.37 is: 105,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,915.03 : 188,929.15 = 76,484.37 : x
  2. Step 2: Convert to fraction form
    136,915.03/188,929.15 = 76,484.37/x
  3. Step 3: Cross multiply
    136,915.03x = 188,929.15 × 76,484.37
  4. Step 4: Simplify right side
    136,915.03x = 14,450,127,012.39
  5. Step 5: Solve for x
    x = 14,450,127,012.39/136,915.03
  6. Step 6: Final answer
    x = 105,540.84

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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.