Home / 142,334.98-213,338.10-53,531.80

Finding the Fourth Proportional to 142,334.98, 213,338.10 and 53,531.80

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Solution

The fourth proportional to 142,334.98, 213,338.10 and 53,531.80 is: 80,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,334.98 : 213,338.10 = 53,531.80 : x
  2. Step 2: Convert to fraction form
    142,334.98/213,338.10 = 53,531.80/x
  3. Step 3: Cross multiply
    142,334.98x = 213,338.10 × 53,531.80
  4. Step 4: Simplify right side
    142,334.98x = 11,420,372,501.58
  5. Step 5: Solve for x
    x = 11,420,372,501.58/142,334.98
  6. Step 6: Final answer
    x = 80,235.88

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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.