Home / 229,725.36-317,049.48-129,123.36

Finding the Fourth Proportional to 229,725.36, 317,049.48 and 129,123.36

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Solution

The fourth proportional to 229,725.36, 317,049.48 and 129,123.36 is: 178,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,725.36 : 317,049.48 = 129,123.36 : x
  2. Step 2: Convert to fraction form
    229,725.36/317,049.48 = 129,123.36/x
  3. Step 3: Cross multiply
    229,725.36x = 317,049.48 × 129,123.36
  4. Step 4: Simplify right side
    229,725.36x = 40,938,494,143.85
  5. Step 5: Solve for x
    x = 40,938,494,143.85/229,725.36
  6. Step 6: Final answer
    x = 178,206.25

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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.