Home / 107,431.84-148,208.24-71,586.88

Finding the Fourth Proportional to 107,431.84, 148,208.24 and 71,586.88

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Solution

The fourth proportional to 107,431.84, 148,208.24 and 71,586.88 is: 98,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,431.84 : 148,208.24 = 71,586.88 : x
  2. Step 2: Convert to fraction form
    107,431.84/148,208.24 = 71,586.88/x
  3. Step 3: Cross multiply
    107,431.84x = 148,208.24 × 71,586.88
  4. Step 4: Simplify right side
    107,431.84x = 10,609,765,491.89
  5. Step 5: Solve for x
    x = 10,609,765,491.89/107,431.84
  6. Step 6: Final answer
    x = 98,758.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.