Home / 213,210.96-319,758.04-80,080.92

Finding the Fourth Proportional to 213,210.96, 319,758.04 and 80,080.92

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Solution

The fourth proportional to 213,210.96, 319,758.04 and 80,080.92 is: 120,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,210.96 : 319,758.04 = 80,080.92 : x
  2. Step 2: Convert to fraction form
    213,210.96/319,758.04 = 80,080.92/x
  3. Step 3: Cross multiply
    213,210.96x = 319,758.04 × 80,080.92
  4. Step 4: Simplify right side
    213,210.96x = 25,606,518,020.60
  5. Step 5: Solve for x
    x = 25,606,518,020.60/213,210.96
  6. Step 6: Final answer
    x = 120,099.45

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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.