Home / 126,534.42-189,801.48-51,689.74

Finding the Fourth Proportional to 126,534.42, 189,801.48 and 51,689.74

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Solution

The fourth proportional to 126,534.42, 189,801.48 and 51,689.74 is: 77,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,534.42 : 189,801.48 = 51,689.74 : x
  2. Step 2: Convert to fraction form
    126,534.42/189,801.48 = 51,689.74/x
  3. Step 3: Cross multiply
    126,534.42x = 189,801.48 × 51,689.74
  4. Step 4: Simplify right side
    126,534.42x = 9,810,789,152.82
  5. Step 5: Solve for x
    x = 9,810,789,152.82/126,534.42
  6. Step 6: Final answer
    x = 77,534.55

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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.