Home / 229,723.48-317,012.70-129,127.96

Finding the Fourth Proportional to 229,723.48, 317,012.70 and 129,127.96

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Solution

The fourth proportional to 229,723.48, 317,012.70 and 129,127.96 is: 178,193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,723.48 : 317,012.70 = 129,127.96 : x
  2. Step 2: Convert to fraction form
    229,723.48/317,012.70 = 129,127.96/x
  3. Step 3: Cross multiply
    229,723.48x = 317,012.70 × 129,127.96
  4. Step 4: Simplify right side
    229,723.48x = 40,935,203,245.09
  5. Step 5: Solve for x
    x = 40,935,203,245.09/229,723.48
  6. Step 6: Final answer
    x = 178,193.38

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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.