Home / 103,666.23-155,499.66-28,790.46

Finding the Fourth Proportional to 103,666.23, 155,499.66 and 28,790.46

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Solution

The fourth proportional to 103,666.23, 155,499.66 and 28,790.46 is: 43,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.23 : 155,499.66 = 28,790.46 : x
  2. Step 2: Convert to fraction form
    103,666.23/155,499.66 = 28,790.46/x
  3. Step 3: Cross multiply
    103,666.23x = 155,499.66 × 28,790.46
  4. Step 4: Simplify right side
    103,666.23x = 4,476,906,741.24
  5. Step 5: Solve for x
    x = 4,476,906,741.24/103,666.23
  6. Step 6: Final answer
    x = 43,185.78

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1.5x scale

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.