Home / 136,605.42-188,504.01-76,171.32

Finding the Fourth Proportional to 136,605.42, 188,504.01 and 76,171.32

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Solution

The fourth proportional to 136,605.42, 188,504.01 and 76,171.32 is: 105,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,605.42 : 188,504.01 = 76,171.32 : x
  2. Step 2: Convert to fraction form
    136,605.42/188,504.01 = 76,171.32/x
  3. Step 3: Cross multiply
    136,605.42x = 188,504.01 × 76,171.32
  4. Step 4: Simplify right side
    136,605.42x = 14,358,599,266.99
  5. Step 5: Solve for x
    x = 14,358,599,266.99/136,605.42
  6. Step 6: Final answer
    x = 105,110.03

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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.