Home / 211,039.56-291,262.32-120,374.76

Finding the Fourth Proportional to 211,039.56, 291,262.32 and 120,374.76

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Solution

The fourth proportional to 211,039.56, 291,262.32 and 120,374.76 is: 166,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,039.56 : 291,262.32 = 120,374.76 : x
  2. Step 2: Convert to fraction form
    211,039.56/291,262.32 = 120,374.76/x
  3. Step 3: Cross multiply
    211,039.56x = 291,262.32 × 120,374.76
  4. Step 4: Simplify right side
    211,039.56x = 35,060,631,867.04
  5. Step 5: Solve for x
    x = 35,060,631,867.04/211,039.56
  6. Step 6: Final answer
    x = 166,132.98

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1.5x scale

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.