Home / 103,179.20-154,779.40-35,711.10

Finding the Fourth Proportional to 103,179.20, 154,779.40 and 35,711.10

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Solution

The fourth proportional to 103,179.20, 154,779.40 and 35,711.10 is: 53,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179.20 : 154,779.40 = 35,711.10 : x
  2. Step 2: Convert to fraction form
    103,179.20/154,779.40 = 35,711.10/x
  3. Step 3: Cross multiply
    103,179.20x = 154,779.40 × 35,711.10
  4. Step 4: Simplify right side
    103,179.20x = 5,527,342,791.31
  5. Step 5: Solve for x
    x = 5,527,342,791.31/103,179.20
  6. Step 6: Final answer
    x = 53,570.32

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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.