Home / 131,628.74-181,647.14-71,199.30

Finding the Fourth Proportional to 131,628.74, 181,647.14 and 71,199.30

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Solution

The fourth proportional to 131,628.74, 181,647.14 and 71,199.30 is: 98,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,628.74 : 181,647.14 = 71,199.30 : x
  2. Step 2: Convert to fraction form
    131,628.74/181,647.14 = 71,199.30/x
  3. Step 3: Cross multiply
    131,628.74x = 181,647.14 × 71,199.30
  4. Step 4: Simplify right side
    131,628.74x = 12,933,148,859.01
  5. Step 5: Solve for x
    x = 12,933,148,859.01/131,628.74
  6. Step 6: Final answer
    x = 98,254.75

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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.