Home / 112,287.42-154,982.68-74,053.86

Finding the Fourth Proportional to 112,287.42, 154,982.68 and 74,053.86

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Solution

The fourth proportional to 112,287.42, 154,982.68 and 74,053.86 is: 102,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,287.42 : 154,982.68 = 74,053.86 : x
  2. Step 2: Convert to fraction form
    112,287.42/154,982.68 = 74,053.86/x
  3. Step 3: Cross multiply
    112,287.42x = 154,982.68 × 74,053.86
  4. Step 4: Simplify right side
    112,287.42x = 11,477,065,687.14
  5. Step 5: Solve for x
    x = 11,477,065,687.14/112,287.42
  6. Step 6: Final answer
    x = 102,211.50

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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.