Home / 211,821.38-292,318.58-116,330.12

Finding the Fourth Proportional to 211,821.38, 292,318.58 and 116,330.12

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Solution

The fourth proportional to 211,821.38, 292,318.58 and 116,330.12 is: 160,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,821.38 : 292,318.58 = 116,330.12 : x
  2. Step 2: Convert to fraction form
    211,821.38/292,318.58 = 116,330.12/x
  3. Step 3: Cross multiply
    211,821.38x = 292,318.58 × 116,330.12
  4. Step 4: Simplify right side
    211,821.38x = 34,005,453,446.39
  5. Step 5: Solve for x
    x = 34,005,453,446.39/211,821.38
  6. Step 6: Final answer
    x = 160,538.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.