Home / 211,521.20-291,818.76-135,043.16

Finding the Fourth Proportional to 211,521.20, 291,818.76 and 135,043.16

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Solution

The fourth proportional to 211,521.20, 291,818.76 and 135,043.16 is: 186,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,521.20 : 291,818.76 = 135,043.16 : x
  2. Step 2: Convert to fraction form
    211,521.20/291,818.76 = 135,043.16/x
  3. Step 3: Cross multiply
    211,521.20x = 291,818.76 × 135,043.16
  4. Step 4: Simplify right side
    211,521.20x = 39,408,127,497.68
  5. Step 5: Solve for x
    x = 39,408,127,497.68/211,521.20
  6. Step 6: Final answer
    x = 186,308.17

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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.