Home / 111,431.21-153,772.30-62,372.14

Finding the Fourth Proportional to 111,431.21, 153,772.30 and 62,372.14

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Solution

The fourth proportional to 111,431.21, 153,772.30 and 62,372.14 is: 86,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,431.21 : 153,772.30 = 62,372.14 : x
  2. Step 2: Convert to fraction form
    111,431.21/153,772.30 = 62,372.14/x
  3. Step 3: Cross multiply
    111,431.21x = 153,772.30 × 62,372.14
  4. Step 4: Simplify right side
    111,431.21x = 9,591,107,267.79
  5. Step 5: Solve for x
    x = 9,591,107,267.79/111,431.21
  6. Step 6: Final answer
    x = 86,072.00

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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.