Home / 211,499.44-317,148.72-122,780.14

Finding the Fourth Proportional to 211,499.44, 317,148.72 and 122,780.14

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Solution

The fourth proportional to 211,499.44, 317,148.72 and 122,780.14 is: 184,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,499.44 : 317,148.72 = 122,780.14 : x
  2. Step 2: Convert to fraction form
    211,499.44/317,148.72 = 122,780.14/x
  3. Step 3: Cross multiply
    211,499.44x = 317,148.72 × 122,780.14
  4. Step 4: Simplify right side
    211,499.44x = 38,939,564,242.42
  5. Step 5: Solve for x
    x = 38,939,564,242.42/211,499.44
  6. Step 6: Final answer
    x = 184,111.90

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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.