Home / 142,324.20-213,428.70-48,781.80

Finding the Fourth Proportional to 142,324.20, 213,428.70 and 48,781.80

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Solution

The fourth proportional to 142,324.20, 213,428.70 and 48,781.80 is: 73,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,324.20 : 213,428.70 = 48,781.80 : x
  2. Step 2: Convert to fraction form
    142,324.20/213,428.70 = 48,781.80/x
  3. Step 3: Cross multiply
    142,324.20x = 213,428.70 × 48,781.80
  4. Step 4: Simplify right side
    142,324.20x = 10,411,436,157.66
  5. Step 5: Solve for x
    x = 10,411,436,157.66/142,324.20
  6. Step 6: Final answer
    x = 73,152.96

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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.