Home / 126,420.03-189,631.26-51,525

Finding the Fourth Proportional to 126,420.03, 189,631.26 and 51,525

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Solution

The fourth proportional to 126,420.03, 189,631.26 and 51,525 is: 77,288.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,420.03 : 189,631.26 = 51,525 : x
  2. Step 2: Convert to fraction form
    126,420.03/189,631.26 = 51,525/x
  3. Step 3: Cross multiply
    126,420.03x = 189,631.26 × 51,525
  4. Step 4: Simplify right side
    126,420.03x = 9,770,750,671.50
  5. Step 5: Solve for x
    x = 9,770,750,671.50/126,420.03
  6. Step 6: Final answer
    x = 77,288.00

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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.