Home / 189,738.56-261,844.64-103,702.32

Finding the Fourth Proportional to 189,738.56, 261,844.64 and 103,702.32

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Solution

The fourth proportional to 189,738.56, 261,844.64 and 103,702.32 is: 143,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,738.56 : 261,844.64 = 103,702.32 : x
  2. Step 2: Convert to fraction form
    189,738.56/261,844.64 = 103,702.32/x
  3. Step 3: Cross multiply
    189,738.56x = 261,844.64 × 103,702.32
  4. Step 4: Simplify right side
    189,738.56x = 27,153,896,647.56
  5. Step 5: Solve for x
    x = 27,153,896,647.56/189,738.56
  6. Step 6: Final answer
    x = 143,112.17

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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.