Home / 126,051.95-189,074.09-51,170.28

Finding the Fourth Proportional to 126,051.95, 189,074.09 and 51,170.28

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Solution

The fourth proportional to 126,051.95, 189,074.09 and 51,170.28 is: 76,753.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,051.95 : 189,074.09 = 51,170.28 : x
  2. Step 2: Convert to fraction form
    126,051.95/189,074.09 = 51,170.28/x
  3. Step 3: Cross multiply
    126,051.95x = 189,074.09 × 51,170.28
  4. Step 4: Simplify right side
    126,051.95x = 9,674,973,870.19
  5. Step 5: Solve for x
    x = 9,674,973,870.19/126,051.95
  6. Step 6: Final answer
    x = 76,753.86

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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.