Home / 136,825.82-188,817.67-76,397.41

Finding the Fourth Proportional to 136,825.82, 188,817.67 and 76,397.41

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Solution

The fourth proportional to 136,825.82, 188,817.67 and 76,397.41 is: 105,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,825.82 : 188,817.67 = 76,397.41 : x
  2. Step 2: Convert to fraction form
    136,825.82/188,817.67 = 76,397.41/x
  3. Step 3: Cross multiply
    136,825.82x = 188,817.67 × 76,397.41
  4. Step 4: Simplify right side
    136,825.82x = 14,425,180,950.23
  5. Step 5: Solve for x
    x = 14,425,180,950.23/136,825.82
  6. Step 6: Final answer
    x = 105,427.33

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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.