Home / 141,126.76-212,534.95-128,529.64

Finding the Fourth Proportional to 141,126.76, 212,534.95 and 128,529.64

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Solution

The fourth proportional to 141,126.76, 212,534.95 and 128,529.64 is: 193,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,126.76 : 212,534.95 = 128,529.64 : x
  2. Step 2: Convert to fraction form
    141,126.76/212,534.95 = 128,529.64/x
  3. Step 3: Cross multiply
    141,126.76x = 212,534.95 × 128,529.64
  4. Step 4: Simplify right side
    141,126.76x = 27,317,040,610.92
  5. Step 5: Solve for x
    x = 27,317,040,610.92/141,126.76
  6. Step 6: Final answer
    x = 193,563.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.