Home / 126,276.21-189,525.06-51,396.12

Finding the Fourth Proportional to 126,276.21, 189,525.06 and 51,396.12

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Solution

The fourth proportional to 126,276.21, 189,525.06 and 51,396.12 is: 77,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,276.21 : 189,525.06 = 51,396.12 : x
  2. Step 2: Convert to fraction form
    126,276.21/189,525.06 = 51,396.12/x
  3. Step 3: Cross multiply
    126,276.21x = 189,525.06 × 51,396.12
  4. Step 4: Simplify right side
    126,276.21x = 9,740,852,726.77
  5. Step 5: Solve for x
    x = 9,740,852,726.77/126,276.21
  6. Step 6: Final answer
    x = 77,139.25

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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.