Home / 213,427.28-320,040.48-124,706.36

Finding the Fourth Proportional to 213,427.28, 320,040.48 and 124,706.36

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Solution

The fourth proportional to 213,427.28, 320,040.48 and 124,706.36 is: 187,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,427.28 : 320,040.48 = 124,706.36 : x
  2. Step 2: Convert to fraction form
    213,427.28/320,040.48 = 124,706.36/x
  3. Step 3: Cross multiply
    213,427.28x = 320,040.48 × 124,706.36
  4. Step 4: Simplify right side
    213,427.28x = 39,911,083,313.45
  5. Step 5: Solve for x
    x = 39,911,083,313.45/213,427.28
  6. Step 6: Final answer
    x = 187,000.85

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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.