Home / 211,380.10-291,549.99-134,951.74

Finding the Fourth Proportional to 211,380.10, 291,549.99 and 134,951.74

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Solution

The fourth proportional to 211,380.10, 291,549.99 and 134,951.74 is: 186,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,380.10 : 291,549.99 = 134,951.74 : x
  2. Step 2: Convert to fraction form
    211,380.10/291,549.99 = 134,951.74/x
  3. Step 3: Cross multiply
    211,380.10x = 291,549.99 × 134,951.74
  4. Step 4: Simplify right side
    211,380.10x = 39,345,178,447.48
  5. Step 5: Solve for x
    x = 39,345,178,447.48/211,380.10
  6. Step 6: Final answer
    x = 186,134.73

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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.