Home / 215,932.45-297,987.81-119,136.30

Finding the Fourth Proportional to 215,932.45, 297,987.81 and 119,136.30

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Solution

The fourth proportional to 215,932.45, 297,987.81 and 119,136.30 is: 164,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,932.45 : 297,987.81 = 119,136.30 : x
  2. Step 2: Convert to fraction form
    215,932.45/297,987.81 = 119,136.30/x
  3. Step 3: Cross multiply
    215,932.45x = 297,987.81 × 119,136.30
  4. Step 4: Simplify right side
    215,932.45x = 35,501,165,128.50
  5. Step 5: Solve for x
    x = 35,501,165,128.50/215,932.45
  6. Step 6: Final answer
    x = 164,408.66

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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.