Home / 211,486.40-291,824.16-120,848.12

Finding the Fourth Proportional to 211,486.40, 291,824.16 and 120,848.12

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Solution

The fourth proportional to 211,486.40, 291,824.16 and 120,848.12 is: 166,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,486.40 : 291,824.16 = 120,848.12 : x
  2. Step 2: Convert to fraction form
    211,486.40/291,824.16 = 120,848.12/x
  3. Step 3: Cross multiply
    211,486.40x = 291,824.16 × 120,848.12
  4. Step 4: Simplify right side
    211,486.40x = 35,266,401,106.58
  5. Step 5: Solve for x
    x = 35,266,401,106.58/211,486.40
  6. Step 6: Final answer
    x = 166,754.94

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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.