Home / 103,605.24-155,407.86-28,725.38

Finding the Fourth Proportional to 103,605.24, 155,407.86 and 28,725.38

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Solution

The fourth proportional to 103,605.24, 155,407.86 and 28,725.38 is: 43,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,605.24 : 155,407.86 = 28,725.38 : x
  2. Step 2: Convert to fraction form
    103,605.24/155,407.86 = 28,725.38/x
  3. Step 3: Cross multiply
    103,605.24x = 155,407.86 × 28,725.38
  4. Step 4: Simplify right side
    103,605.24x = 4,464,150,062.85
  5. Step 5: Solve for x
    x = 4,464,150,062.85/103,605.24
  6. Step 6: Final answer
    x = 43,088.07

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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.