Home / 151,126.64-208,554.45-83,143.45

Finding the Fourth Proportional to 151,126.64, 208,554.45 and 83,143.45

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Solution

The fourth proportional to 151,126.64, 208,554.45 and 83,143.45 is: 114,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,126.64 : 208,554.45 = 83,143.45 : x
  2. Step 2: Convert to fraction form
    151,126.64/208,554.45 = 83,143.45/x
  3. Step 3: Cross multiply
    151,126.64x = 208,554.45 × 83,143.45
  4. Step 4: Simplify right side
    151,126.64x = 17,339,936,485.85
  5. Step 5: Solve for x
    x = 17,339,936,485.85/151,126.64
  6. Step 6: Final answer
    x = 114,737.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.