Home / 152,221.36-210,149.92-91,807.36

Finding the Fourth Proportional to 152,221.36, 210,149.92 and 91,807.36

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Solution

The fourth proportional to 152,221.36, 210,149.92 and 91,807.36 is: 126,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,221.36 : 210,149.92 = 91,807.36 : x
  2. Step 2: Convert to fraction form
    152,221.36/210,149.92 = 91,807.36/x
  3. Step 3: Cross multiply
    152,221.36x = 210,149.92 × 91,807.36
  4. Step 4: Simplify right side
    152,221.36x = 19,293,309,359.41
  5. Step 5: Solve for x
    x = 19,293,309,359.41/152,221.36
  6. Step 6: Final answer
    x = 126,745.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.