Home / 211,475.08-291,835.02-120,859.16

Finding the Fourth Proportional to 211,475.08, 291,835.02 and 120,859.16

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Solution

The fourth proportional to 211,475.08, 291,835.02 and 120,859.16 is: 166,785.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,475.08 : 291,835.02 = 120,859.16 : x
  2. Step 2: Convert to fraction form
    211,475.08/291,835.02 = 120,859.16/x
  3. Step 3: Cross multiply
    211,475.08x = 291,835.02 × 120,859.16
  4. Step 4: Simplify right side
    211,475.08x = 35,270,936,105.37
  5. Step 5: Solve for x
    x = 35,270,936,105.37/211,475.08
  6. Step 6: Final answer
    x = 166,785.31

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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.