Home / 103,544.10-155,315.90-28,664.01

Finding the Fourth Proportional to 103,544.10, 155,315.90 and 28,664.01

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Solution

The fourth proportional to 103,544.10, 155,315.90 and 28,664.01 is: 42,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,544.10 : 155,315.90 = 28,664.01 : x
  2. Step 2: Convert to fraction form
    103,544.10/155,315.90 = 28,664.01/x
  3. Step 3: Cross multiply
    103,544.10x = 155,315.90 × 28,664.01
  4. Step 4: Simplify right side
    103,544.10x = 4,451,976,582.42
  5. Step 5: Solve for x
    x = 4,451,976,582.42/103,544.10
  6. Step 6: Final answer
    x = 42,995.95

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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.