Home / 211,372.11-291,695.90-120,740.04

Finding the Fourth Proportional to 211,372.11, 291,695.90 and 120,740.04

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Solution

The fourth proportional to 211,372.11, 291,695.90 and 120,740.04 is: 166,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,372.11 : 291,695.90 = 120,740.04 : x
  2. Step 2: Convert to fraction form
    211,372.11/291,695.90 = 120,740.04/x
  3. Step 3: Cross multiply
    211,372.11x = 291,695.90 × 120,740.04
  4. Step 4: Simplify right side
    211,372.11x = 35,219,374,030.14
  5. Step 5: Solve for x
    x = 35,219,374,030.14/211,372.11
  6. Step 6: Final answer
    x = 166,622.62

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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.