Home / 103,430.66-155,215.24-44,280.80

Finding the Fourth Proportional to 103,430.66, 155,215.24 and 44,280.80

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Solution

The fourth proportional to 103,430.66, 155,215.24 and 44,280.80 is: 66,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430.66 : 155,215.24 = 44,280.80 : x
  2. Step 2: Convert to fraction form
    103,430.66/155,215.24 = 44,280.80/x
  3. Step 3: Cross multiply
    103,430.66x = 155,215.24 × 44,280.80
  4. Step 4: Simplify right side
    103,430.66x = 6,873,054,999.39
  5. Step 5: Solve for x
    x = 6,873,054,999.39/103,430.66
  6. Step 6: Final answer
    x = 66,450.85

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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.