Home / 111,309.28-153,610.40-61,012.96

Finding the Fourth Proportional to 111,309.28, 153,610.40 and 61,012.96

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Solution

The fourth proportional to 111,309.28, 153,610.40 and 61,012.96 is: 84,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,309.28 : 153,610.40 = 61,012.96 : x
  2. Step 2: Convert to fraction form
    111,309.28/153,610.40 = 61,012.96/x
  3. Step 3: Cross multiply
    111,309.28x = 153,610.40 × 61,012.96
  4. Step 4: Simplify right side
    111,309.28x = 9,372,225,190.78
  5. Step 5: Solve for x
    x = 9,372,225,190.78/111,309.28
  6. Step 6: Final answer
    x = 84,199.85

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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.