Home / 112,069.05-168,148.64-45,514.40

Finding the Fourth Proportional to 112,069.05, 168,148.64 and 45,514.40

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Solution

The fourth proportional to 112,069.05, 168,148.64 and 45,514.40 is: 68,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,069.05 : 168,148.64 = 45,514.40 : x
  2. Step 2: Convert to fraction form
    112,069.05/168,148.64 = 45,514.40/x
  3. Step 3: Cross multiply
    112,069.05x = 168,148.64 × 45,514.40
  4. Step 4: Simplify right side
    112,069.05x = 7,653,183,392.10
  5. Step 5: Solve for x
    x = 7,653,183,392.10/112,069.05
  6. Step 6: Final answer
    x = 68,289.89

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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.