Home / 136,526.40-188,383.59-76,083.84

Finding the Fourth Proportional to 136,526.40, 188,383.59 and 76,083.84

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Solution

The fourth proportional to 136,526.40, 188,383.59 and 76,083.84 is: 104,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,526.40 : 188,383.59 = 76,083.84 : x
  2. Step 2: Convert to fraction form
    136,526.40/188,383.59 = 76,083.84/x
  3. Step 3: Cross multiply
    136,526.40x = 188,383.59 × 76,083.84
  4. Step 4: Simplify right side
    136,526.40x = 14,332,946,920.19
  5. Step 5: Solve for x
    x = 14,332,946,920.19/136,526.40
  6. Step 6: Final answer
    x = 104,982.97

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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.