Home / 103,095.08-142,351.62-79,183.88

Finding the Fourth Proportional to 103,095.08, 142,351.62 and 79,183.88

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Solution

The fourth proportional to 103,095.08, 142,351.62 and 79,183.88 is: 109,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,095.08 : 142,351.62 = 79,183.88 : x
  2. Step 2: Convert to fraction form
    103,095.08/142,351.62 = 79,183.88/x
  3. Step 3: Cross multiply
    103,095.08x = 142,351.62 × 79,183.88
  4. Step 4: Simplify right side
    103,095.08x = 11,271,953,595.89
  5. Step 5: Solve for x
    x = 11,271,953,595.89/103,095.08
  6. Step 6: Final answer
    x = 109,335.51

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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.