Home / 136,181.76-187,939.85-75,752.21

Finding the Fourth Proportional to 136,181.76, 187,939.85 and 75,752.21

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Solution

The fourth proportional to 136,181.76, 187,939.85 and 75,752.21 is: 104,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,181.76 : 187,939.85 = 75,752.21 : x
  2. Step 2: Convert to fraction form
    136,181.76/187,939.85 = 75,752.21/x
  3. Step 3: Cross multiply
    136,181.76x = 187,939.85 × 75,752.21
  4. Step 4: Simplify right side
    136,181.76x = 14,236,859,075.66
  5. Step 5: Solve for x
    x = 14,236,859,075.66/136,181.76
  6. Step 6: Final answer
    x = 104,543.07

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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.