Home / 123,420.36-170,332.67-88,993.41

Finding the Fourth Proportional to 123,420.36, 170,332.67 and 88,993.41

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Solution

The fourth proportional to 123,420.36, 170,332.67 and 88,993.41 is: 122,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,420.36 : 170,332.67 = 88,993.41 : x
  2. Step 2: Convert to fraction form
    123,420.36/170,332.67 = 88,993.41/x
  3. Step 3: Cross multiply
    123,420.36x = 170,332.67 × 88,993.41
  4. Step 4: Simplify right side
    123,420.36x = 15,158,484,692.74
  5. Step 5: Solve for x
    x = 15,158,484,692.74/123,420.36
  6. Step 6: Final answer
    x = 122,819.97

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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.