Home / 211,455.70-291,811.80-115,956.10

Finding the Fourth Proportional to 211,455.70, 291,811.80 and 115,956.10

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Solution

The fourth proportional to 211,455.70, 291,811.80 and 115,956.10 is: 160,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,455.70 : 291,811.80 = 115,956.10 : x
  2. Step 2: Convert to fraction form
    211,455.70/291,811.80 = 115,956.10/x
  3. Step 3: Cross multiply
    211,455.70x = 291,811.80 × 115,956.10
  4. Step 4: Simplify right side
    211,455.70x = 33,837,358,261.98
  5. Step 5: Solve for x
    x = 33,837,358,261.98/211,455.70
  6. Step 6: Final answer
    x = 160,021.03

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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.