Home / 103,740.26-155,610.52-28,860.44

Finding the Fourth Proportional to 103,740.26, 155,610.52 and 28,860.44

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Solution

The fourth proportional to 103,740.26, 155,610.52 and 28,860.44 is: 43,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,740.26 : 155,610.52 = 28,860.44 : x
  2. Step 2: Convert to fraction form
    103,740.26/155,610.52 = 28,860.44/x
  3. Step 3: Cross multiply
    103,740.26x = 155,610.52 × 28,860.44
  4. Step 4: Simplify right side
    103,740.26x = 4,490,988,075.83
  5. Step 5: Solve for x
    x = 4,490,988,075.83/103,740.26
  6. Step 6: Final answer
    x = 43,290.70

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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.