Home / 213,454.58-320,181.86-80,364.69

Finding the Fourth Proportional to 213,454.58, 320,181.86 and 80,364.69

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Solution

The fourth proportional to 213,454.58, 320,181.86 and 80,364.69 is: 120,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,454.58 : 320,181.86 = 80,364.69 : x
  2. Step 2: Convert to fraction form
    213,454.58/320,181.86 = 80,364.69/x
  3. Step 3: Cross multiply
    213,454.58x = 320,181.86 × 80,364.69
  4. Step 4: Simplify right side
    213,454.58x = 25,731,316,123.44
  5. Step 5: Solve for x
    x = 25,731,316,123.44/213,454.58
  6. Step 6: Final answer
    x = 120,547.04

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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.