Home / 126,445.72-189,678.30-37,692.28

Finding the Fourth Proportional to 126,445.72, 189,678.30 and 37,692.28

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Solution

The fourth proportional to 126,445.72, 189,678.30 and 37,692.28 is: 56,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,445.72 : 189,678.30 = 37,692.28 : x
  2. Step 2: Convert to fraction form
    126,445.72/189,678.30 = 37,692.28/x
  3. Step 3: Cross multiply
    126,445.72x = 189,678.30 × 37,692.28
  4. Step 4: Simplify right side
    126,445.72x = 7,149,407,593.52
  5. Step 5: Solve for x
    x = 7,149,407,593.52/126,445.72
  6. Step 6: Final answer
    x = 56,541.32

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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.