Home / 102,732.16-154,098.30-67,416.89

Finding the Fourth Proportional to 102,732.16, 154,098.30 and 67,416.89

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Solution

The fourth proportional to 102,732.16, 154,098.30 and 67,416.89 is: 101,125.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,732.16 : 154,098.30 = 67,416.89 : x
  2. Step 2: Convert to fraction form
    102,732.16/154,098.30 = 67,416.89/x
  3. Step 3: Cross multiply
    102,732.16x = 154,098.30 × 67,416.89
  4. Step 4: Simplify right side
    102,732.16x = 10,388,828,760.29
  5. Step 5: Solve for x
    x = 10,388,828,760.29/102,732.16
  6. Step 6: Final answer
    x = 101,125.38

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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.