Home / 103,839.32-155,756.74-28,957.47

Finding the Fourth Proportional to 103,839.32, 155,756.74 and 28,957.47

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Solution

The fourth proportional to 103,839.32, 155,756.74 and 28,957.47 is: 43,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839.32 : 155,756.74 = 28,957.47 : x
  2. Step 2: Convert to fraction form
    103,839.32/155,756.74 = 28,957.47/x
  3. Step 3: Cross multiply
    103,839.32x = 155,756.74 × 28,957.47
  4. Step 4: Simplify right side
    103,839.32x = 4,510,320,523.66
  5. Step 5: Solve for x
    x = 4,510,320,523.66/103,839.32
  6. Step 6: Final answer
    x = 43,435.58

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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.