Home / 211,037.69-291,259.73-120,372.84

Finding the Fourth Proportional to 211,037.69, 291,259.73 and 120,372.84

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Solution

The fourth proportional to 211,037.69, 291,259.73 and 120,372.84 is: 166,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,037.69 : 291,259.73 = 120,372.84 : x
  2. Step 2: Convert to fraction form
    211,037.69/291,259.73 = 120,372.84/x
  3. Step 3: Cross multiply
    211,037.69x = 291,259.73 × 120,372.84
  4. Step 4: Simplify right side
    211,037.69x = 35,059,761,178.67
  5. Step 5: Solve for x
    x = 35,059,761,178.67/211,037.69
  6. Step 6: Final answer
    x = 166,130.33

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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.