Home / 136,461.36-188,313.84-76,031.76

Finding the Fourth Proportional to 136,461.36, 188,313.84 and 76,031.76

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Solution

The fourth proportional to 136,461.36, 188,313.84 and 76,031.76 is: 104,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,461.36 : 188,313.84 = 76,031.76 : x
  2. Step 2: Convert to fraction form
    136,461.36/188,313.84 = 76,031.76/x
  3. Step 3: Cross multiply
    136,461.36x = 188,313.84 × 76,031.76
  4. Step 4: Simplify right side
    136,461.36x = 14,317,832,687.56
  5. Step 5: Solve for x
    x = 14,317,832,687.56/136,461.36
  6. Step 6: Final answer
    x = 104,922.25

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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.