Home / 142,403.05-213,560.82-67,501.03

Finding the Fourth Proportional to 142,403.05, 213,560.82 and 67,501.03

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Solution

The fourth proportional to 142,403.05, 213,560.82 and 67,501.03 is: 101,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,403.05 : 213,560.82 = 67,501.03 : x
  2. Step 2: Convert to fraction form
    142,403.05/213,560.82 = 67,501.03/x
  3. Step 3: Cross multiply
    142,403.05x = 213,560.82 × 67,501.03
  4. Step 4: Simplify right side
    142,403.05x = 14,415,574,249.84
  5. Step 5: Solve for x
    x = 14,415,574,249.84/142,403.05
  6. Step 6: Final answer
    x = 101,230.80

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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.