Home / 126,381.72-189,572.04-51,485.16

Finding the Fourth Proportional to 126,381.72, 189,572.04 and 51,485.16

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Solution

The fourth proportional to 126,381.72, 189,572.04 and 51,485.16 is: 77,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,381.72 : 189,572.04 = 51,485.16 : x
  2. Step 2: Convert to fraction form
    126,381.72/189,572.04 = 51,485.16/x
  3. Step 3: Cross multiply
    126,381.72x = 189,572.04 × 51,485.16
  4. Step 4: Simplify right side
    126,381.72x = 9,760,146,810.93
  5. Step 5: Solve for x
    x = 9,760,146,810.93/126,381.72
  6. Step 6: Final answer
    x = 77,227.52

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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.