Home / 136,440.36-188,301.48-76,020.84

Finding the Fourth Proportional to 136,440.36, 188,301.48 and 76,020.84

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Solution

The fourth proportional to 136,440.36, 188,301.48 and 76,020.84 is: 104,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,440.36 : 188,301.48 = 76,020.84 : x
  2. Step 2: Convert to fraction form
    136,440.36/188,301.48 = 76,020.84/x
  3. Step 3: Cross multiply
    136,440.36x = 188,301.48 × 76,020.84
  4. Step 4: Simplify right side
    136,440.36x = 14,314,836,682.84
  5. Step 5: Solve for x
    x = 14,314,836,682.84/136,440.36
  6. Step 6: Final answer
    x = 104,916.44

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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.