Home / 126,427.32-189,577.48-42,157.66

Finding the Fourth Proportional to 126,427.32, 189,577.48 and 42,157.66

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Solution

The fourth proportional to 126,427.32, 189,577.48 and 42,157.66 is: 63,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,427.32 : 189,577.48 = 42,157.66 : x
  2. Step 2: Convert to fraction form
    126,427.32/189,577.48 = 42,157.66/x
  3. Step 3: Cross multiply
    126,427.32x = 189,577.48 × 42,157.66
  4. Step 4: Simplify right side
    126,427.32x = 7,992,142,945.50
  5. Step 5: Solve for x
    x = 7,992,142,945.50/126,427.32
  6. Step 6: Final answer
    x = 63,215.32

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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.