Home / 112,072.28-168,123-45,514.58

Finding the Fourth Proportional to 112,072.28, 168,123 and 45,514.58

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Solution

The fourth proportional to 112,072.28, 168,123 and 45,514.58 is: 68,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072.28 : 168,123 = 45,514.58 : x
  2. Step 2: Convert to fraction form
    112,072.28/168,123 = 45,514.58/x
  3. Step 3: Cross multiply
    112,072.28x = 168,123 × 45,514.58
  4. Step 4: Simplify right side
    112,072.28x = 7,652,047,733.34
  5. Step 5: Solve for x
    x = 7,652,047,733.34/112,072.28
  6. Step 6: Final answer
    x = 68,277.79

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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.