Home / 126,431.55-189,685.38-37,685.06

Finding the Fourth Proportional to 126,431.55, 189,685.38 and 37,685.06

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Solution

The fourth proportional to 126,431.55, 189,685.38 and 37,685.06 is: 56,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,431.55 : 189,685.38 = 37,685.06 : x
  2. Step 2: Convert to fraction form
    126,431.55/189,685.38 = 37,685.06/x
  3. Step 3: Cross multiply
    126,431.55x = 189,685.38 × 37,685.06
  4. Step 4: Simplify right side
    126,431.55x = 7,148,303,978.00
  5. Step 5: Solve for x
    x = 7,148,303,978.00/126,431.55
  6. Step 6: Final answer
    x = 56,538.93

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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.