Home / 112,218.82-168,235.08-45,690.28

Finding the Fourth Proportional to 112,218.82, 168,235.08 and 45,690.28

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Solution

The fourth proportional to 112,218.82, 168,235.08 and 45,690.28 is: 68,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.82 : 168,235.08 = 45,690.28 : x
  2. Step 2: Convert to fraction form
    112,218.82/168,235.08 = 45,690.28/x
  3. Step 3: Cross multiply
    112,218.82x = 168,235.08 × 45,690.28
  4. Step 4: Simplify right side
    112,218.82x = 7,686,707,911.02
  5. Step 5: Solve for x
    x = 7,686,707,911.02/112,218.82
  6. Step 6: Final answer
    x = 68,497.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.