Home / 215,623.63-297,560.55-120,136.42

Finding the Fourth Proportional to 215,623.63, 297,560.55 and 120,136.42

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Solution

The fourth proportional to 215,623.63, 297,560.55 and 120,136.42 is: 165,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,623.63 : 297,560.55 = 120,136.42 : x
  2. Step 2: Convert to fraction form
    215,623.63/297,560.55 = 120,136.42/x
  3. Step 3: Cross multiply
    215,623.63x = 297,560.55 × 120,136.42
  4. Step 4: Simplify right side
    215,623.63x = 35,747,859,210.23
  5. Step 5: Solve for x
    x = 35,747,859,210.23/215,623.63
  6. Step 6: Final answer
    x = 165,788.23

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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.