Home / 215,681.88-297,636.92-120,186.48

Finding the Fourth Proportional to 215,681.88, 297,636.92 and 120,186.48

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Solution

The fourth proportional to 215,681.88, 297,636.92 and 120,186.48 is: 165,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,681.88 : 297,636.92 = 120,186.48 : x
  2. Step 2: Convert to fraction form
    215,681.88/297,636.92 = 120,186.48/x
  3. Step 3: Cross multiply
    215,681.88x = 297,636.92 × 120,186.48
  4. Step 4: Simplify right side
    215,681.88x = 35,771,933,732.84
  5. Step 5: Solve for x
    x = 35,771,933,732.84/215,681.88
  6. Step 6: Final answer
    x = 165,855.07

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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.