Home / 155,101.80-213,985.97-101,418.24

Finding the Fourth Proportional to 155,101.80, 213,985.97 and 101,418.24

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Solution

The fourth proportional to 155,101.80, 213,985.97 and 101,418.24 is: 139,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,101.80 : 213,985.97 = 101,418.24 : x
  2. Step 2: Convert to fraction form
    155,101.80/213,985.97 = 101,418.24/x
  3. Step 3: Cross multiply
    155,101.80x = 213,985.97 × 101,418.24
  4. Step 4: Simplify right side
    155,101.80x = 21,702,078,885.07
  5. Step 5: Solve for x
    x = 21,702,078,885.07/155,101.80
  6. Step 6: Final answer
    x = 139,921.52

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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.