Home / 103,554.11-155,281.44-36,978.41

Finding the Fourth Proportional to 103,554.11, 155,281.44 and 36,978.41

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Solution

The fourth proportional to 103,554.11, 155,281.44 and 36,978.41 is: 55,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.11 : 155,281.44 = 36,978.41 : x
  2. Step 2: Convert to fraction form
    103,554.11/155,281.44 = 36,978.41/x
  3. Step 3: Cross multiply
    103,554.11x = 155,281.44 × 36,978.41
  4. Step 4: Simplify right side
    103,554.11x = 5,742,061,010.22
  5. Step 5: Solve for x
    x = 5,742,061,010.22/103,554.11
  6. Step 6: Final answer
    x = 55,449.86

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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.