Home / 103,765.25-155,632.37-28,877.58

Finding the Fourth Proportional to 103,765.25, 155,632.37 and 28,877.58

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Solution

The fourth proportional to 103,765.25, 155,632.37 and 28,877.58 is: 43,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,765.25 : 155,632.37 = 28,877.58 : x
  2. Step 2: Convert to fraction form
    103,765.25/155,632.37 = 28,877.58/x
  3. Step 3: Cross multiply
    103,765.25x = 155,632.37 × 28,877.58
  4. Step 4: Simplify right side
    103,765.25x = 4,494,286,287.46
  5. Step 5: Solve for x
    x = 4,494,286,287.46/103,765.25
  6. Step 6: Final answer
    x = 43,312.06

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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.