Home / 112,187.12-168,345-45,614.96

Finding the Fourth Proportional to 112,187.12, 168,345 and 45,614.96

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Solution

The fourth proportional to 112,187.12, 168,345 and 45,614.96 is: 68,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,187.12 : 168,345 = 45,614.96 : x
  2. Step 2: Convert to fraction form
    112,187.12/168,345 = 45,614.96/x
  3. Step 3: Cross multiply
    112,187.12x = 168,345 × 45,614.96
  4. Step 4: Simplify right side
    112,187.12x = 7,679,050,441.20
  5. Step 5: Solve for x
    x = 7,679,050,441.20/112,187.12
  6. Step 6: Final answer
    x = 68,448.59

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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.