Home / 103,735.50-155,603.39-28,855.65

Finding the Fourth Proportional to 103,735.50, 155,603.39 and 28,855.65

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Solution

The fourth proportional to 103,735.50, 155,603.39 and 28,855.65 is: 43,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,735.50 : 155,603.39 = 28,855.65 : x
  2. Step 2: Convert to fraction form
    103,735.50/155,603.39 = 28,855.65/x
  3. Step 3: Cross multiply
    103,735.50x = 155,603.39 × 28,855.65
  4. Step 4: Simplify right side
    103,735.50x = 4,490,036,816.38
  5. Step 5: Solve for x
    x = 4,490,036,816.38/103,735.50
  6. Step 6: Final answer
    x = 43,283.51

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1.5x scale

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.