Home / 112,031.09-168,116.69-45,471.21

Finding the Fourth Proportional to 112,031.09, 168,116.69 and 45,471.21

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Solution

The fourth proportional to 112,031.09, 168,116.69 and 45,471.21 is: 68,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.09 : 168,116.69 = 45,471.21 : x
  2. Step 2: Convert to fraction form
    112,031.09/168,116.69 = 45,471.21/x
  3. Step 3: Cross multiply
    112,031.09x = 168,116.69 × 45,471.21
  4. Step 4: Simplify right side
    112,031.09x = 7,644,469,315.49
  5. Step 5: Solve for x
    x = 7,644,469,315.49/112,031.09
  6. Step 6: Final answer
    x = 68,235.25

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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.