Home / 215,571.51-297,497.88-120,078.18

Finding the Fourth Proportional to 215,571.51, 297,497.88 and 120,078.18

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Solution

The fourth proportional to 215,571.51, 297,497.88 and 120,078.18 is: 165,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,571.51 : 297,497.88 = 120,078.18 : x
  2. Step 2: Convert to fraction form
    215,571.51/297,497.88 = 120,078.18/x
  3. Step 3: Cross multiply
    215,571.51x = 297,497.88 × 120,078.18
  4. Step 4: Simplify right side
    215,571.51x = 35,723,003,984.26
  5. Step 5: Solve for x
    x = 35,723,003,984.26/215,571.51
  6. Step 6: Final answer
    x = 165,713.01

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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.