Home / 133,020.90-199,531.35-127,772.10

Finding the Fourth Proportional to 133,020.90, 199,531.35 and 127,772.10

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Solution

The fourth proportional to 133,020.90, 199,531.35 and 127,772.10 is: 191,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.90 : 199,531.35 = 127,772.10 : x
  2. Step 2: Convert to fraction form
    133,020.90/199,531.35 = 127,772.10/x
  3. Step 3: Cross multiply
    133,020.90x = 199,531.35 × 127,772.10
  4. Step 4: Simplify right side
    133,020.90x = 25,494,539,605.34
  5. Step 5: Solve for x
    x = 25,494,539,605.34/133,020.90
  6. Step 6: Final answer
    x = 191,658.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.