Home / 103,525.16-155,287.53-28,645.09

Finding the Fourth Proportional to 103,525.16, 155,287.53 and 28,645.09

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Solution

The fourth proportional to 103,525.16, 155,287.53 and 28,645.09 is: 42,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,525.16 : 155,287.53 = 28,645.09 : x
  2. Step 2: Convert to fraction form
    103,525.16/155,287.53 = 28,645.09/x
  3. Step 3: Cross multiply
    103,525.16x = 155,287.53 × 28,645.09
  4. Step 4: Simplify right side
    103,525.16x = 4,448,225,758.00
  5. Step 5: Solve for x
    x = 4,448,225,758.00/103,525.16
  6. Step 6: Final answer
    x = 42,967.58

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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.