Home / 215,585.48-323,133-131,159.54

Finding the Fourth Proportional to 215,585.48, 323,133 and 131,159.54

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Solution

The fourth proportional to 215,585.48, 323,133 and 131,159.54 is: 196,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,585.48 : 323,133 = 131,159.54 : x
  2. Step 2: Convert to fraction form
    215,585.48/323,133 = 131,159.54/x
  3. Step 3: Cross multiply
    215,585.48x = 323,133 × 131,159.54
  4. Step 4: Simplify right side
    215,585.48x = 42,381,975,638.82
  5. Step 5: Solve for x
    x = 42,381,975,638.82/215,585.48
  6. Step 6: Final answer
    x = 196,590.12

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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.