Home / 104,519.43-144,181.53-66,211.40

Finding the Fourth Proportional to 104,519.43, 144,181.53 and 66,211.40

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Solution

The fourth proportional to 104,519.43, 144,181.53 and 66,211.40 is: 91,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,519.43 : 144,181.53 = 66,211.40 : x
  2. Step 2: Convert to fraction form
    104,519.43/144,181.53 = 66,211.40/x
  3. Step 3: Cross multiply
    104,519.43x = 144,181.53 × 66,211.40
  4. Step 4: Simplify right side
    104,519.43x = 9,546,461,315.90
  5. Step 5: Solve for x
    x = 9,546,461,315.90/104,519.43
  6. Step 6: Final answer
    x = 91,336.71

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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.