Home / 211,062.06-291,238.56-120,412.80

Finding the Fourth Proportional to 211,062.06, 291,238.56 and 120,412.80

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Solution

The fourth proportional to 211,062.06, 291,238.56 and 120,412.80 is: 166,154.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,062.06 : 291,238.56 = 120,412.80 : x
  2. Step 2: Convert to fraction form
    211,062.06/291,238.56 = 120,412.80/x
  3. Step 3: Cross multiply
    211,062.06x = 291,238.56 × 120,412.80
  4. Step 4: Simplify right side
    211,062.06x = 35,068,850,477.57
  5. Step 5: Solve for x
    x = 35,068,850,477.57/211,062.06
  6. Step 6: Final answer
    x = 166,154.21

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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.