Home / 131,727.45-181,782.76-71,297.57

Finding the Fourth Proportional to 131,727.45, 181,782.76 and 71,297.57

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Solution

The fourth proportional to 131,727.45, 181,782.76 and 71,297.57 is: 98,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.45 : 181,782.76 = 71,297.57 : x
  2. Step 2: Convert to fraction form
    131,727.45/181,782.76 = 71,297.57/x
  3. Step 3: Cross multiply
    131,727.45x = 181,782.76 × 71,297.57
  4. Step 4: Simplify right side
    131,727.45x = 12,960,668,242.74
  5. Step 5: Solve for x
    x = 12,960,668,242.74/131,727.45
  6. Step 6: Final answer
    x = 98,390.03

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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.