Home / 211,012.86-291,225.47-120,348.05

Finding the Fourth Proportional to 211,012.86, 291,225.47 and 120,348.05

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Solution

The fourth proportional to 211,012.86, 291,225.47 and 120,348.05 is: 166,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,012.86 : 291,225.47 = 120,348.05 : x
  2. Step 2: Convert to fraction form
    211,012.86/291,225.47 = 120,348.05/x
  3. Step 3: Cross multiply
    211,012.86x = 291,225.47 × 120,348.05
  4. Step 4: Simplify right side
    211,012.86x = 35,048,416,269.58
  5. Step 5: Solve for x
    x = 35,048,416,269.58/211,012.86
  6. Step 6: Final answer
    x = 166,096.11

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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.