Home / 131,692.42-181,738.65-75,102.58

Finding the Fourth Proportional to 131,692.42, 181,738.65 and 75,102.58

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Solution

The fourth proportional to 131,692.42, 181,738.65 and 75,102.58 is: 103,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,692.42 : 181,738.65 = 75,102.58 : x
  2. Step 2: Convert to fraction form
    131,692.42/181,738.65 = 75,102.58/x
  3. Step 3: Cross multiply
    131,692.42x = 181,738.65 × 75,102.58
  4. Step 4: Simplify right side
    131,692.42x = 13,649,041,500.72
  5. Step 5: Solve for x
    x = 13,649,041,500.72/131,692.42
  6. Step 6: Final answer
    x = 103,643.33

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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.