Home / 211,147.04-291,411.90-129,460.84

Finding the Fourth Proportional to 211,147.04, 291,411.90 and 129,460.84

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Solution

The fourth proportional to 211,147.04, 291,411.90 and 129,460.84 is: 178,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.04 : 291,411.90 = 129,460.84 : x
  2. Step 2: Convert to fraction form
    211,147.04/291,411.90 = 129,460.84/x
  3. Step 3: Cross multiply
    211,147.04x = 291,411.90 × 129,460.84
  4. Step 4: Simplify right side
    211,147.04x = 37,726,429,360.00
  5. Step 5: Solve for x
    x = 37,726,429,360.00/211,147.04
  6. Step 6: Final answer
    x = 178,673.73

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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.