Home / 103,820.22-155,722.58-40,628.22

Finding the Fourth Proportional to 103,820.22, 155,722.58 and 40,628.22

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Solution

The fourth proportional to 103,820.22, 155,722.58 and 40,628.22 is: 60,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,820.22 : 155,722.58 = 40,628.22 : x
  2. Step 2: Convert to fraction form
    103,820.22/155,722.58 = 40,628.22/x
  3. Step 3: Cross multiply
    103,820.22x = 155,722.58 × 40,628.22
  4. Step 4: Simplify right side
    103,820.22x = 6,326,731,036.07
  5. Step 5: Solve for x
    x = 6,326,731,036.07/103,820.22
  6. Step 6: Final answer
    x = 60,939.30

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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.