Home / 142,950.83-197,295.77-79,309.13

Finding the Fourth Proportional to 142,950.83, 197,295.77 and 79,309.13

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Solution

The fourth proportional to 142,950.83, 197,295.77 and 79,309.13 is: 109,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,950.83 : 197,295.77 = 79,309.13 : x
  2. Step 2: Convert to fraction form
    142,950.83/197,295.77 = 79,309.13/x
  3. Step 3: Cross multiply
    142,950.83x = 197,295.77 × 79,309.13
  4. Step 4: Simplify right side
    142,950.83x = 15,647,355,871.38
  5. Step 5: Solve for x
    x = 15,647,355,871.38/142,950.83
  6. Step 6: Final answer
    x = 109,459.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.