Home / 213,445.46-320,173.95-55,670.42

Finding the Fourth Proportional to 213,445.46, 320,173.95 and 55,670.42

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Solution

The fourth proportional to 213,445.46, 320,173.95 and 55,670.42 is: 83,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,445.46 : 320,173.95 = 55,670.42 : x
  2. Step 2: Convert to fraction form
    213,445.46/320,173.95 = 55,670.42/x
  3. Step 3: Cross multiply
    213,445.46x = 320,173.95 × 55,670.42
  4. Step 4: Simplify right side
    213,445.46x = 17,824,218,269.56
  5. Step 5: Solve for x
    x = 17,824,218,269.56/213,445.46
  6. Step 6: Final answer
    x = 83,507.13

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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.