Home / 211,172.26-291,417.80-115,682.40

Finding the Fourth Proportional to 211,172.26, 291,417.80 and 115,682.40

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Solution

The fourth proportional to 211,172.26, 291,417.80 and 115,682.40 is: 159,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,172.26 : 291,417.80 = 115,682.40 : x
  2. Step 2: Convert to fraction form
    211,172.26/291,417.80 = 115,682.40/x
  3. Step 3: Cross multiply
    211,172.26x = 291,417.80 × 115,682.40
  4. Step 4: Simplify right side
    211,172.26x = 33,711,910,506.72
  5. Step 5: Solve for x
    x = 33,711,910,506.72/211,172.26
  6. Step 6: Final answer
    x = 159,641.76

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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.