Home / 212,799.56-319,206.02-79,654.39

Finding the Fourth Proportional to 212,799.56, 319,206.02 and 79,654.39

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Solution

The fourth proportional to 212,799.56, 319,206.02 and 79,654.39 is: 119,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,799.56 : 319,206.02 = 79,654.39 : x
  2. Step 2: Convert to fraction form
    212,799.56/319,206.02 = 79,654.39/x
  3. Step 3: Cross multiply
    212,799.56x = 319,206.02 × 79,654.39
  4. Step 4: Simplify right side
    212,799.56x = 25,426,159,611.14
  5. Step 5: Solve for x
    x = 25,426,159,611.14/212,799.56
  6. Step 6: Final answer
    x = 119,484.08

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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.