Home / 216,985.59-325,195.62-120,918.98

Finding the Fourth Proportional to 216,985.59, 325,195.62 and 120,918.98

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Solution

The fourth proportional to 216,985.59, 325,195.62 and 120,918.98 is: 181,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,985.59 : 325,195.62 = 120,918.98 : x
  2. Step 2: Convert to fraction form
    216,985.59/325,195.62 = 120,918.98/x
  3. Step 3: Cross multiply
    216,985.59x = 325,195.62 × 120,918.98
  4. Step 4: Simplify right side
    216,985.59x = 39,322,321,044.89
  5. Step 5: Solve for x
    x = 39,322,321,044.89/216,985.59
  6. Step 6: Final answer
    x = 181,220.89

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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.