Home / 211,045.84-291,271.10-120,381.04

Finding the Fourth Proportional to 211,045.84, 291,271.10 and 120,381.04

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Solution

The fourth proportional to 211,045.84, 291,271.10 and 120,381.04 is: 166,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,045.84 : 291,271.10 = 120,381.04 : x
  2. Step 2: Convert to fraction form
    211,045.84/291,271.10 = 120,381.04/x
  3. Step 3: Cross multiply
    211,045.84x = 291,271.10 × 120,381.04
  4. Step 4: Simplify right side
    211,045.84x = 35,063,517,939.94
  5. Step 5: Solve for x
    x = 35,063,517,939.94/211,045.84
  6. Step 6: Final answer
    x = 166,141.72

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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.