Home / 129,603.12-177,685.88-127,241.16

Finding the Fourth Proportional to 129,603.12, 177,685.88 and 127,241.16

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Solution

The fourth proportional to 129,603.12, 177,685.88 and 127,241.16 is: 174,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,603.12 : 177,685.88 = 127,241.16 : x
  2. Step 2: Convert to fraction form
    129,603.12/177,685.88 = 127,241.16/x
  3. Step 3: Cross multiply
    129,603.12x = 177,685.88 × 127,241.16
  4. Step 4: Simplify right side
    129,603.12x = 22,608,957,486.82
  5. Step 5: Solve for x
    x = 22,608,957,486.82/129,603.12
  6. Step 6: Final answer
    x = 174,447.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.