Home / 103,528.25-155,295.82-28,642.12

Finding the Fourth Proportional to 103,528.25, 155,295.82 and 28,642.12

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Solution

The fourth proportional to 103,528.25, 155,295.82 and 28,642.12 is: 42,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,528.25 : 155,295.82 = 28,642.12 : x
  2. Step 2: Convert to fraction form
    103,528.25/155,295.82 = 28,642.12/x
  3. Step 3: Cross multiply
    103,528.25x = 155,295.82 × 28,642.12
  4. Step 4: Simplify right side
    103,528.25x = 4,448,000,735.46
  5. Step 5: Solve for x
    x = 4,448,000,735.46/103,528.25
  6. Step 6: Final answer
    x = 42,964.13

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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.