Home / 126,723.23-190,127.07-42,491.72

Finding the Fourth Proportional to 126,723.23, 190,127.07 and 42,491.72

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Solution

The fourth proportional to 126,723.23, 190,127.07 and 42,491.72 is: 63,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,723.23 : 190,127.07 = 42,491.72 : x
  2. Step 2: Convert to fraction form
    126,723.23/190,127.07 = 42,491.72/x
  3. Step 3: Cross multiply
    126,723.23x = 190,127.07 × 42,491.72
  4. Step 4: Simplify right side
    126,723.23x = 8,078,826,222.86
  5. Step 5: Solve for x
    x = 8,078,826,222.86/126,723.23
  6. Step 6: Final answer
    x = 63,751.74

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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.