Home / 104,065.75-143,610.46-56,319.09

Finding the Fourth Proportional to 104,065.75, 143,610.46 and 56,319.09

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Solution

The fourth proportional to 104,065.75, 143,610.46 and 56,319.09 is: 77,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.75 : 143,610.46 = 56,319.09 : x
  2. Step 2: Convert to fraction form
    104,065.75/143,610.46 = 56,319.09/x
  3. Step 3: Cross multiply
    104,065.75x = 143,610.46 × 56,319.09
  4. Step 4: Simplify right side
    104,065.75x = 8,088,010,421.68
  5. Step 5: Solve for x
    x = 8,088,010,421.68/104,065.75
  6. Step 6: Final answer
    x = 77,720.20

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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.