Home / 211,768.04-317,457.09-91,749.57

Finding the Fourth Proportional to 211,768.04, 317,457.09 and 91,749.57

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Solution

The fourth proportional to 211,768.04, 317,457.09 and 91,749.57 is: 137,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,768.04 : 317,457.09 = 91,749.57 : x
  2. Step 2: Convert to fraction form
    211,768.04/317,457.09 = 91,749.57/x
  3. Step 3: Cross multiply
    211,768.04x = 317,457.09 × 91,749.57
  4. Step 4: Simplify right side
    211,768.04x = 29,126,551,500.95
  5. Step 5: Solve for x
    x = 29,126,551,500.95/211,768.04
  6. Step 6: Final answer
    x = 137,539.89

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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.