Home / 141,816.90-212,665.20-53,008.30

Finding the Fourth Proportional to 141,816.90, 212,665.20 and 53,008.30

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Solution

The fourth proportional to 141,816.90, 212,665.20 and 53,008.30 is: 79,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.90 : 212,665.20 = 53,008.30 : x
  2. Step 2: Convert to fraction form
    141,816.90/212,665.20 = 53,008.30/x
  3. Step 3: Cross multiply
    141,816.90x = 212,665.20 × 53,008.30
  4. Step 4: Simplify right side
    141,816.90x = 11,273,020,721.16
  5. Step 5: Solve for x
    x = 11,273,020,721.16/141,816.90
  6. Step 6: Final answer
    x = 79,489.97

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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.