Home / 131,289.07-181,178.00-71,673.07

Finding the Fourth Proportional to 131,289.07, 181,178.00 and 71,673.07

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Solution

The fourth proportional to 131,289.07, 181,178.00 and 71,673.07 is: 98,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,289.07 : 181,178.00 = 71,673.07 : x
  2. Step 2: Convert to fraction form
    131,289.07/181,178.00 = 71,673.07/x
  3. Step 3: Cross multiply
    131,289.07x = 181,178.00 × 71,673.07
  4. Step 4: Simplify right side
    131,289.07x = 12,985,583,118.09
  5. Step 5: Solve for x
    x = 12,985,583,118.09/131,289.07
  6. Step 6: Final answer
    x = 98,908.33

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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.