Home / 112,015.92-154,369.38-80,129.52

Finding the Fourth Proportional to 112,015.92, 154,369.38 and 80,129.52

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Solution

The fourth proportional to 112,015.92, 154,369.38 and 80,129.52 is: 110,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.92 : 154,369.38 = 80,129.52 : x
  2. Step 2: Convert to fraction form
    112,015.92/154,369.38 = 80,129.52/x
  3. Step 3: Cross multiply
    112,015.92x = 154,369.38 × 80,129.52
  4. Step 4: Simplify right side
    112,015.92x = 12,369,544,322.10
  5. Step 5: Solve for x
    x = 12,369,544,322.10/112,015.92
  6. Step 6: Final answer
    x = 110,426.66

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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.