Home / 141,774.90-212,662.35-127,778.10

Finding the Fourth Proportional to 141,774.90, 212,662.35 and 127,778.10

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Solution

The fourth proportional to 141,774.90, 212,662.35 and 127,778.10 is: 191,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,774.90 : 212,662.35 = 127,778.10 : x
  2. Step 2: Convert to fraction form
    141,774.90/212,662.35 = 127,778.10/x
  3. Step 3: Cross multiply
    141,774.90x = 212,662.35 × 127,778.10
  4. Step 4: Simplify right side
    141,774.90x = 27,173,591,024.54
  5. Step 5: Solve for x
    x = 27,173,591,024.54/141,774.90
  6. Step 6: Final answer
    x = 191,667.15

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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.