Home / 145,109.50-200,263.70-80,591.19

Finding the Fourth Proportional to 145,109.50, 200,263.70 and 80,591.19

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Solution

The fourth proportional to 145,109.50, 200,263.70 and 80,591.19 is: 111,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,109.50 : 200,263.70 = 80,591.19 : x
  2. Step 2: Convert to fraction form
    145,109.50/200,263.70 = 80,591.19/x
  3. Step 3: Cross multiply
    145,109.50x = 200,263.70 × 80,591.19
  4. Step 4: Simplify right side
    145,109.50x = 16,139,489,896.80
  5. Step 5: Solve for x
    x = 16,139,489,896.80/145,109.50
  6. Step 6: Final answer
    x = 111,222.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.