Home / 124,789.68-187,196.40-45,905.40

Finding the Fourth Proportional to 124,789.68, 187,196.40 and 45,905.40

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Solution

The fourth proportional to 124,789.68, 187,196.40 and 45,905.40 is: 68,862.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,789.68 : 187,196.40 = 45,905.40 : x
  2. Step 2: Convert to fraction form
    124,789.68/187,196.40 = 45,905.40/x
  3. Step 3: Cross multiply
    124,789.68x = 187,196.40 × 45,905.40
  4. Step 4: Simplify right side
    124,789.68x = 8,593,325,620.56
  5. Step 5: Solve for x
    x = 8,593,325,620.56/124,789.68
  6. Step 6: Final answer
    x = 68,862.47

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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.