Home / 140,519.04-193,916.40-79,266

Finding the Fourth Proportional to 140,519.04, 193,916.40 and 79,266

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Solution

The fourth proportional to 140,519.04, 193,916.40 and 79,266 is: 109,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,519.04 : 193,916.40 = 79,266 : x
  2. Step 2: Convert to fraction form
    140,519.04/193,916.40 = 79,266/x
  3. Step 3: Cross multiply
    140,519.04x = 193,916.40 × 79,266
  4. Step 4: Simplify right side
    140,519.04x = 15,370,977,362.40
  5. Step 5: Solve for x
    x = 15,370,977,362.40/140,519.04
  6. Step 6: Final answer
    x = 109,387.15

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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.