Home / 103,519.04-155,135.46-47,221.88

Finding the Fourth Proportional to 103,519.04, 155,135.46 and 47,221.88

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Solution

The fourth proportional to 103,519.04, 155,135.46 and 47,221.88 is: 70,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.04 : 155,135.46 = 47,221.88 : x
  2. Step 2: Convert to fraction form
    103,519.04/155,135.46 = 47,221.88/x
  3. Step 3: Cross multiply
    103,519.04x = 155,135.46 × 47,221.88
  4. Step 4: Simplify right side
    103,519.04x = 7,325,788,075.86
  5. Step 5: Solve for x
    x = 7,325,788,075.86/103,519.04
  6. Step 6: Final answer
    x = 70,767.54

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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.