Home / 123,947.20-186,066.60-123,072.40

Finding the Fourth Proportional to 123,947.20, 186,066.60 and 123,072.40

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Solution

The fourth proportional to 123,947.20, 186,066.60 and 123,072.40 is: 184,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.20 : 186,066.60 = 123,072.40 : x
  2. Step 2: Convert to fraction form
    123,947.20/186,066.60 = 123,072.40/x
  3. Step 3: Cross multiply
    123,947.20x = 186,066.60 × 123,072.40
  4. Step 4: Simplify right side
    123,947.20x = 22,899,663,021.84
  5. Step 5: Solve for x
    x = 22,899,663,021.84/123,947.20
  6. Step 6: Final answer
    x = 184,753.37

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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.