Home / 141,816.40-212,664.45-53,007.79

Finding the Fourth Proportional to 141,816.40, 212,664.45 and 53,007.79

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Solution

The fourth proportional to 141,816.40, 212,664.45 and 53,007.79 is: 79,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.40 : 212,664.45 = 53,007.79 : x
  2. Step 2: Convert to fraction form
    141,816.40/212,664.45 = 53,007.79/x
  3. Step 3: Cross multiply
    141,816.40x = 212,664.45 × 53,007.79
  4. Step 4: Simplify right side
    141,816.40x = 11,272,872,506.07
  5. Step 5: Solve for x
    x = 11,272,872,506.07/141,816.40
  6. Step 6: Final answer
    x = 79,489.20

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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.