Home / 210,128.84-289,965.98-119,506.85

Finding the Fourth Proportional to 210,128.84, 289,965.98 and 119,506.85

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Solution

The fourth proportional to 210,128.84, 289,965.98 and 119,506.85 is: 164,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,128.84 : 289,965.98 = 119,506.85 : x
  2. Step 2: Convert to fraction form
    210,128.84/289,965.98 = 119,506.85/x
  3. Step 3: Cross multiply
    210,128.84x = 289,965.98 × 119,506.85
  4. Step 4: Simplify right side
    210,128.84x = 34,652,919,725.90
  5. Step 5: Solve for x
    x = 34,652,919,725.90/210,128.84
  6. Step 6: Final answer
    x = 164,912.73

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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.