Home / 179,682.32-247,929-111,717.20

Finding the Fourth Proportional to 179,682.32, 247,929 and 111,717.20

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Solution

The fourth proportional to 179,682.32, 247,929 and 111,717.20 is: 154,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,682.32 : 247,929 = 111,717.20 : x
  2. Step 2: Convert to fraction form
    179,682.32/247,929 = 111,717.20/x
  3. Step 3: Cross multiply
    179,682.32x = 247,929 × 111,717.20
  4. Step 4: Simplify right side
    179,682.32x = 27,697,933,678.80
  5. Step 5: Solve for x
    x = 27,697,933,678.80/179,682.32
  6. Step 6: Final answer
    x = 154,149.47

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1.5x scale

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.