Home / 279,757.02-419,407.11-130,090.89

Finding the Fourth Proportional to 279,757.02, 419,407.11 and 130,090.89

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Solution

The fourth proportional to 279,757.02, 419,407.11 and 130,090.89 is: 195,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,757.02 : 419,407.11 = 130,090.89 : x
  2. Step 2: Convert to fraction form
    279,757.02/419,407.11 = 130,090.89/x
  3. Step 3: Cross multiply
    279,757.02x = 419,407.11 × 130,090.89
  4. Step 4: Simplify right side
    279,757.02x = 54,561,044,212.23
  5. Step 5: Solve for x
    x = 54,561,044,212.23/279,757.02
  6. Step 6: Final answer
    x = 195,030.12

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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.