Home / 211,510.90-291,784.44-126,611.56

Finding the Fourth Proportional to 211,510.90, 291,784.44 and 126,611.56

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Solution

The fourth proportional to 211,510.90, 291,784.44 and 126,611.56 is: 174,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,510.90 : 291,784.44 = 126,611.56 : x
  2. Step 2: Convert to fraction form
    211,510.90/291,784.44 = 126,611.56/x
  3. Step 3: Cross multiply
    211,510.90x = 291,784.44 × 126,611.56
  4. Step 4: Simplify right side
    211,510.90x = 36,943,283,132.13
  5. Step 5: Solve for x
    x = 36,943,283,132.13/211,510.90
  6. Step 6: Final answer
    x = 174,663.73

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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.