Home / 142,376.20-213,502.32-75,801.48

Finding the Fourth Proportional to 142,376.20, 213,502.32 and 75,801.48

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Solution

The fourth proportional to 142,376.20, 213,502.32 and 75,801.48 is: 113,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,376.20 : 213,502.32 = 75,801.48 : x
  2. Step 2: Convert to fraction form
    142,376.20/213,502.32 = 75,801.48/x
  3. Step 3: Cross multiply
    142,376.20x = 213,502.32 × 75,801.48
  4. Step 4: Simplify right side
    142,376.20x = 16,183,791,839.43
  5. Step 5: Solve for x
    x = 16,183,791,839.43/142,376.20
  6. Step 6: Final answer
    x = 113,669.22

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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.