Home / 112,278.93-154,908.12-80,018.63

Finding the Fourth Proportional to 112,278.93, 154,908.12 and 80,018.63

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Solution

The fourth proportional to 112,278.93, 154,908.12 and 80,018.63 is: 110,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,278.93 : 154,908.12 = 80,018.63 : x
  2. Step 2: Convert to fraction form
    112,278.93/154,908.12 = 80,018.63/x
  3. Step 3: Cross multiply
    112,278.93x = 154,908.12 × 80,018.63
  4. Step 4: Simplify right side
    112,278.93x = 12,395,535,351.05
  5. Step 5: Solve for x
    x = 12,395,535,351.05/112,278.93
  6. Step 6: Final answer
    x = 110,399.48

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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.