Home / 211,199.80-291,476.63-120,569.41

Finding the Fourth Proportional to 211,199.80, 291,476.63 and 120,569.41

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Solution

The fourth proportional to 211,199.80, 291,476.63 and 120,569.41 is: 166,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,199.80 : 291,476.63 = 120,569.41 : x
  2. Step 2: Convert to fraction form
    211,199.80/291,476.63 = 120,569.41/x
  3. Step 3: Cross multiply
    211,199.80x = 291,476.63 × 120,569.41
  4. Step 4: Simplify right side
    211,199.80x = 35,143,163,247.66
  5. Step 5: Solve for x
    x = 35,143,163,247.66/211,199.80
  6. Step 6: Final answer
    x = 166,397.71

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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.