Home / 111,527.40-153,837.80-66,173.28

Finding the Fourth Proportional to 111,527.40, 153,837.80 and 66,173.28

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Solution

The fourth proportional to 111,527.40, 153,837.80 and 66,173.28 is: 91,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,527.40 : 153,837.80 = 66,173.28 : x
  2. Step 2: Convert to fraction form
    111,527.40/153,837.80 = 66,173.28/x
  3. Step 3: Cross multiply
    111,527.40x = 153,837.80 × 66,173.28
  4. Step 4: Simplify right side
    111,527.40x = 10,179,951,813.98
  5. Step 5: Solve for x
    x = 10,179,951,813.98/111,527.40
  6. Step 6: Final answer
    x = 91,277.59

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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.