Home / 131,658.13-181,692.89-74,311.41

Finding the Fourth Proportional to 131,658.13, 181,692.89 and 74,311.41

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Solution

The fourth proportional to 131,658.13, 181,692.89 and 74,311.41 is: 102,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,658.13 : 181,692.89 = 74,311.41 : x
  2. Step 2: Convert to fraction form
    131,658.13/181,692.89 = 74,311.41/x
  3. Step 3: Cross multiply
    131,658.13x = 181,692.89 × 74,311.41
  4. Step 4: Simplify right side
    131,658.13x = 13,501,854,471.32
  5. Step 5: Solve for x
    x = 13,501,854,471.32/131,658.13
  6. Step 6: Final answer
    x = 102,552.38

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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.