Home / 211,069.56-291,248.96-120,420.30

Finding the Fourth Proportional to 211,069.56, 291,248.96 and 120,420.30

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Solution

The fourth proportional to 211,069.56, 291,248.96 and 120,420.30 is: 166,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,069.56 : 291,248.96 = 120,420.30 : x
  2. Step 2: Convert to fraction form
    211,069.56/291,248.96 = 120,420.30/x
  3. Step 3: Cross multiply
    211,069.56x = 291,248.96 × 120,420.30
  4. Step 4: Simplify right side
    211,069.56x = 35,072,286,535.79
  5. Step 5: Solve for x
    x = 35,072,286,535.79/211,069.56
  6. Step 6: Final answer
    x = 166,164.59

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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.