Home / 126,859.86-190,246.05-42,606.90

Finding the Fourth Proportional to 126,859.86, 190,246.05 and 42,606.90

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Solution

The fourth proportional to 126,859.86, 190,246.05 and 42,606.90 is: 63,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,859.86 : 190,246.05 = 42,606.90 : x
  2. Step 2: Convert to fraction form
    126,859.86/190,246.05 = 42,606.90/x
  3. Step 3: Cross multiply
    126,859.86x = 190,246.05 × 42,606.90
  4. Step 4: Simplify right side
    126,859.86x = 8,105,794,427.75
  5. Step 5: Solve for x
    x = 8,105,794,427.75/126,859.86
  6. Step 6: Final answer
    x = 63,895.66

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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.