Home / 143,085.22-214,632.45-71,969.05

Finding the Fourth Proportional to 143,085.22, 214,632.45 and 71,969.05

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Solution

The fourth proportional to 143,085.22, 214,632.45 and 71,969.05 is: 107,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085.22 : 214,632.45 = 71,969.05 : x
  2. Step 2: Convert to fraction form
    143,085.22/214,632.45 = 71,969.05/x
  3. Step 3: Cross multiply
    143,085.22x = 214,632.45 × 71,969.05
  4. Step 4: Simplify right side
    143,085.22x = 15,446,893,525.67
  5. Step 5: Solve for x
    x = 15,446,893,525.67/143,085.22
  6. Step 6: Final answer
    x = 107,955.90

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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.