Home / 136,092.53-187,818.20-81,646.74

Finding the Fourth Proportional to 136,092.53, 187,818.20 and 81,646.74

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Solution

The fourth proportional to 136,092.53, 187,818.20 and 81,646.74 is: 112,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,092.53 : 187,818.20 = 81,646.74 : x
  2. Step 2: Convert to fraction form
    136,092.53/187,818.20 = 81,646.74/x
  3. Step 3: Cross multiply
    136,092.53x = 187,818.20 × 81,646.74
  4. Step 4: Simplify right side
    136,092.53x = 15,334,743,334.43
  5. Step 5: Solve for x
    x = 15,334,743,334.43/136,092.53
  6. Step 6: Final answer
    x = 112,678.81

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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.