Home / 104,164.81-143,747.64-56,418.20

Finding the Fourth Proportional to 104,164.81, 143,747.64 and 56,418.20

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Solution

The fourth proportional to 104,164.81, 143,747.64 and 56,418.20 is: 77,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,164.81 : 143,747.64 = 56,418.20 : x
  2. Step 2: Convert to fraction form
    104,164.81/143,747.64 = 56,418.20/x
  3. Step 3: Cross multiply
    104,164.81x = 143,747.64 × 56,418.20
  4. Step 4: Simplify right side
    104,164.81x = 8,109,983,103.05
  5. Step 5: Solve for x
    x = 8,109,983,103.05/104,164.81
  6. Step 6: Final answer
    x = 77,857.23

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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.