Home / 133,028.90-199,543.35-127,780.10

Finding the Fourth Proportional to 133,028.90, 199,543.35 and 127,780.10

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Solution

The fourth proportional to 133,028.90, 199,543.35 and 127,780.10 is: 191,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,028.90 : 199,543.35 = 127,780.10 : x
  2. Step 2: Convert to fraction form
    133,028.90/199,543.35 = 127,780.10/x
  3. Step 3: Cross multiply
    133,028.90x = 199,543.35 × 127,780.10
  4. Step 4: Simplify right side
    133,028.90x = 25,497,669,217.34
  5. Step 5: Solve for x
    x = 25,497,669,217.34/133,028.90
  6. Step 6: Final answer
    x = 191,670.15

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1.5x scale

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.