Home / 457,665.03-686,437.20-120,732.03

Finding the Fourth Proportional to 457,665.03, 686,437.20 and 120,732.03

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Solution

The fourth proportional to 457,665.03, 686,437.20 and 120,732.03 is: 181,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,665.03 : 686,437.20 = 120,732.03 : x
  2. Step 2: Convert to fraction form
    457,665.03/686,437.20 = 120,732.03/x
  3. Step 3: Cross multiply
    457,665.03x = 686,437.20 × 120,732.03
  4. Step 4: Simplify right side
    457,665.03x = 82,874,956,623.52
  5. Step 5: Solve for x
    x = 82,874,956,623.52/457,665.03
  6. Step 6: Final answer
    x = 181,082.13

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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.