Home / 136,087.84-203,695-72,749.58

Finding the Fourth Proportional to 136,087.84, 203,695 and 72,749.58

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Solution

The fourth proportional to 136,087.84, 203,695 and 72,749.58 is: 108,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,087.84 : 203,695 = 72,749.58 : x
  2. Step 2: Convert to fraction form
    136,087.84/203,695 = 72,749.58/x
  3. Step 3: Cross multiply
    136,087.84x = 203,695 × 72,749.58
  4. Step 4: Simplify right side
    136,087.84x = 14,818,725,698.10
  5. Step 5: Solve for x
    x = 14,818,725,698.10/136,087.84
  6. Step 6: Final answer
    x = 108,890.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.