Home / 131,786.30-181,864.80-71,357.01

Finding the Fourth Proportional to 131,786.30, 181,864.80 and 71,357.01

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Solution

The fourth proportional to 131,786.30, 181,864.80 and 71,357.01 is: 98,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,786.30 : 181,864.80 = 71,357.01 : x
  2. Step 2: Convert to fraction form
    131,786.30/181,864.80 = 71,357.01/x
  3. Step 3: Cross multiply
    131,786.30x = 181,864.80 × 71,357.01
  4. Step 4: Simplify right side
    131,786.30x = 12,977,328,352.25
  5. Step 5: Solve for x
    x = 12,977,328,352.25/131,786.30
  6. Step 6: Final answer
    x = 98,472.52

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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.