Home / 213,090.02-319,551.93-79,897.70

Finding the Fourth Proportional to 213,090.02, 319,551.93 and 79,897.70

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Solution

The fourth proportional to 213,090.02, 319,551.93 and 79,897.70 is: 119,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,090.02 : 319,551.93 = 79,897.70 : x
  2. Step 2: Convert to fraction form
    213,090.02/319,551.93 = 79,897.70/x
  3. Step 3: Cross multiply
    213,090.02x = 319,551.93 × 79,897.70
  4. Step 4: Simplify right side
    213,090.02x = 25,531,464,237.56
  5. Step 5: Solve for x
    x = 25,531,464,237.56/213,090.02
  6. Step 6: Final answer
    x = 119,815.39

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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.