Home / 112,218.08-154,917.06-69,790.28

Finding the Fourth Proportional to 112,218.08, 154,917.06 and 69,790.28

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Solution

The fourth proportional to 112,218.08, 154,917.06 and 69,790.28 is: 96,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.08 : 154,917.06 = 69,790.28 : x
  2. Step 2: Convert to fraction form
    112,218.08/154,917.06 = 69,790.28/x
  3. Step 3: Cross multiply
    112,218.08x = 154,917.06 × 69,790.28
  4. Step 4: Simplify right side
    112,218.08x = 10,811,704,994.18
  5. Step 5: Solve for x
    x = 10,811,704,994.18/112,218.08
  6. Step 6: Final answer
    x = 96,345.48

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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.