Home / 126,555.21-189,760.95-51,587.55

Finding the Fourth Proportional to 126,555.21, 189,760.95 and 51,587.55

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Solution

The fourth proportional to 126,555.21, 189,760.95 and 51,587.55 is: 77,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,555.21 : 189,760.95 = 51,587.55 : x
  2. Step 2: Convert to fraction form
    126,555.21/189,760.95 = 51,587.55/x
  3. Step 3: Cross multiply
    126,555.21x = 189,760.95 × 51,587.55
  4. Step 4: Simplify right side
    126,555.21x = 9,789,302,496.17
  5. Step 5: Solve for x
    x = 9,789,302,496.17/126,555.21
  6. Step 6: Final answer
    x = 77,352.03

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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.