Home / 155,304.41-213,876.36-139,859.37

Finding the Fourth Proportional to 155,304.41, 213,876.36 and 139,859.37

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Solution

The fourth proportional to 155,304.41, 213,876.36 and 139,859.37 is: 192,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,304.41 : 213,876.36 = 139,859.37 : x
  2. Step 2: Convert to fraction form
    155,304.41/213,876.36 = 139,859.37/x
  3. Step 3: Cross multiply
    155,304.41x = 213,876.36 × 139,859.37
  4. Step 4: Simplify right side
    155,304.41x = 29,912,612,967.49
  5. Step 5: Solve for x
    x = 29,912,612,967.49/155,304.41
  6. Step 6: Final answer
    x = 192,606.34

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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.