Home / 211,126.47-291,356.58-126,243.53

Finding the Fourth Proportional to 211,126.47, 291,356.58 and 126,243.53

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Solution

The fourth proportional to 211,126.47, 291,356.58 and 126,243.53 is: 174,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,126.47 : 291,356.58 = 126,243.53 : x
  2. Step 2: Convert to fraction form
    211,126.47/291,356.58 = 126,243.53/x
  3. Step 3: Cross multiply
    211,126.47x = 291,356.58 × 126,243.53
  4. Step 4: Simplify right side
    211,126.47x = 36,781,883,147.93
  5. Step 5: Solve for x
    x = 36,781,883,147.93/211,126.47
  6. Step 6: Final answer
    x = 174,217.30

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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.