Home / 213,883.35-320,808.30-56,107.69

Finding the Fourth Proportional to 213,883.35, 320,808.30 and 56,107.69

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Solution

The fourth proportional to 213,883.35, 320,808.30 and 56,107.69 is: 84,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,883.35 : 320,808.30 = 56,107.69 : x
  2. Step 2: Convert to fraction form
    213,883.35/320,808.30 = 56,107.69/x
  3. Step 3: Cross multiply
    213,883.35x = 320,808.30 × 56,107.69
  4. Step 4: Simplify right side
    213,883.35x = 17,999,812,645.83
  5. Step 5: Solve for x
    x = 17,999,812,645.83/213,883.35
  6. Step 6: Final answer
    x = 84,157.15

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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.