Home / 213,919.65-320,854.77-56,160.45

Finding the Fourth Proportional to 213,919.65, 320,854.77 and 56,160.45

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Solution

The fourth proportional to 213,919.65, 320,854.77 and 56,160.45 is: 84,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,919.65 : 320,854.77 = 56,160.45 : x
  2. Step 2: Convert to fraction form
    213,919.65/320,854.77 = 56,160.45/x
  3. Step 3: Cross multiply
    213,919.65x = 320,854.77 × 56,160.45
  4. Step 4: Simplify right side
    213,919.65x = 18,019,348,267.85
  5. Step 5: Solve for x
    x = 18,019,348,267.85/213,919.65
  6. Step 6: Final answer
    x = 84,234.19

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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.