Home / 126,410.10-189,615.90-42,170.06

Finding the Fourth Proportional to 126,410.10, 189,615.90 and 42,170.06

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Solution

The fourth proportional to 126,410.10, 189,615.90 and 42,170.06 is: 63,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,410.10 : 189,615.90 = 42,170.06 : x
  2. Step 2: Convert to fraction form
    126,410.10/189,615.90 = 42,170.06/x
  3. Step 3: Cross multiply
    126,410.10x = 189,615.90 × 42,170.06
  4. Step 4: Simplify right side
    126,410.10x = 7,996,113,879.95
  5. Step 5: Solve for x
    x = 7,996,113,879.95/126,410.10
  6. Step 6: Final answer
    x = 63,255.34

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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.