Home / 112,015.43-154,581.21-61,714.43

Finding the Fourth Proportional to 112,015.43, 154,581.21 and 61,714.43

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Solution

The fourth proportional to 112,015.43, 154,581.21 and 61,714.43 is: 85,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.43 : 154,581.21 = 61,714.43 : x
  2. Step 2: Convert to fraction form
    112,015.43/154,581.21 = 61,714.43/x
  3. Step 3: Cross multiply
    112,015.43x = 154,581.21 × 61,714.43
  4. Step 4: Simplify right side
    112,015.43x = 9,539,891,263.86
  5. Step 5: Solve for x
    x = 9,539,891,263.86/112,015.43
  6. Step 6: Final answer
    x = 85,165.87

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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.