Home / 134,403.69-185,399.85-84,015.21

Finding the Fourth Proportional to 134,403.69, 185,399.85 and 84,015.21

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Solution

The fourth proportional to 134,403.69, 185,399.85 and 84,015.21 is: 115,892.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,403.69 : 185,399.85 = 84,015.21 : x
  2. Step 2: Convert to fraction form
    134,403.69/185,399.85 = 84,015.21/x
  3. Step 3: Cross multiply
    134,403.69x = 185,399.85 × 84,015.21
  4. Step 4: Simplify right side
    134,403.69x = 15,576,407,331.72
  5. Step 5: Solve for x
    x = 15,576,407,331.72/134,403.69
  6. Step 6: Final answer
    x = 115,892.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.