Home / 103,636.03-155,454.03-28,756.18

Finding the Fourth Proportional to 103,636.03, 155,454.03 and 28,756.18

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Solution

The fourth proportional to 103,636.03, 155,454.03 and 28,756.18 is: 43,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.03 : 155,454.03 = 28,756.18 : x
  2. Step 2: Convert to fraction form
    103,636.03/155,454.03 = 28,756.18/x
  3. Step 3: Cross multiply
    103,636.03x = 155,454.03 × 28,756.18
  4. Step 4: Simplify right side
    103,636.03x = 4,470,264,068.41
  5. Step 5: Solve for x
    x = 4,470,264,068.41/103,636.03
  6. Step 6: Final answer
    x = 43,134.27

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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.