Home / 103,457.90-155,186.61-28,577.85

Finding the Fourth Proportional to 103,457.90, 155,186.61 and 28,577.85

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Solution

The fourth proportional to 103,457.90, 155,186.61 and 28,577.85 is: 42,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,457.90 : 155,186.61 = 28,577.85 : x
  2. Step 2: Convert to fraction form
    103,457.90/155,186.61 = 28,577.85/x
  3. Step 3: Cross multiply
    103,457.90x = 155,186.61 × 28,577.85
  4. Step 4: Simplify right side
    103,457.90x = 4,434,899,662.59
  5. Step 5: Solve for x
    x = 4,434,899,662.59/103,457.90
  6. Step 6: Final answer
    x = 42,866.71

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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.