Home / 142,576.46-213,767.48-72,320.30

Finding the Fourth Proportional to 142,576.46, 213,767.48 and 72,320.30

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Solution

The fourth proportional to 142,576.46, 213,767.48 and 72,320.30 is: 108,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,576.46 : 213,767.48 = 72,320.30 : x
  2. Step 2: Convert to fraction form
    142,576.46/213,767.48 = 72,320.30/x
  3. Step 3: Cross multiply
    142,576.46x = 213,767.48 × 72,320.30
  4. Step 4: Simplify right side
    142,576.46x = 15,459,728,283.84
  5. Step 5: Solve for x
    x = 15,459,728,283.84/142,576.46
  6. Step 6: Final answer
    x = 108,431.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.