Home / 99,507.75-137,318.73-54,186.27

Finding the Fourth Proportional to 99,507.75, 137,318.73 and 54,186.27

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Solution

The fourth proportional to 99,507.75, 137,318.73 and 54,186.27 is: 74,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,507.75 : 137,318.73 = 54,186.27 : x
  2. Step 2: Convert to fraction form
    99,507.75/137,318.73 = 54,186.27/x
  3. Step 3: Cross multiply
    99,507.75x = 137,318.73 × 54,186.27
  4. Step 4: Simplify right side
    99,507.75x = 7,440,789,779.84
  5. Step 5: Solve for x
    x = 7,440,789,779.84/99,507.75
  6. Step 6: Final answer
    x = 74,775.98

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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.