Home / 215,932.95-297,988.50-119,136.80

Finding the Fourth Proportional to 215,932.95, 297,988.50 and 119,136.80

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Solution

The fourth proportional to 215,932.95, 297,988.50 and 119,136.80 is: 164,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,932.95 : 297,988.50 = 119,136.80 : x
  2. Step 2: Convert to fraction form
    215,932.95/297,988.50 = 119,136.80/x
  3. Step 3: Cross multiply
    215,932.95x = 297,988.50 × 119,136.80
  4. Step 4: Simplify right side
    215,932.95x = 35,501,396,326.80
  5. Step 5: Solve for x
    x = 35,501,396,326.80/215,932.95
  6. Step 6: Final answer
    x = 164,409.35

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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.