Home / 211,124.12-291,340.56-115,612.40

Finding the Fourth Proportional to 211,124.12, 291,340.56 and 115,612.40

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Solution

The fourth proportional to 211,124.12, 291,340.56 and 115,612.40 is: 159,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,124.12 : 291,340.56 = 115,612.40 : x
  2. Step 2: Convert to fraction form
    211,124.12/291,340.56 = 115,612.40/x
  3. Step 3: Cross multiply
    211,124.12x = 291,340.56 × 115,612.40
  4. Step 4: Simplify right side
    211,124.12x = 33,682,581,358.94
  5. Step 5: Solve for x
    x = 33,682,581,358.94/211,124.12
  6. Step 6: Final answer
    x = 159,539.24

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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.