Home / 215,910.23-298,102.88-139,613.90

Finding the Fourth Proportional to 215,910.23, 298,102.88 and 139,613.90

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Solution

The fourth proportional to 215,910.23, 298,102.88 and 139,613.90 is: 192,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,910.23 : 298,102.88 = 139,613.90 : x
  2. Step 2: Convert to fraction form
    215,910.23/298,102.88 = 139,613.90/x
  3. Step 3: Cross multiply
    215,910.23x = 298,102.88 × 139,613.90
  4. Step 4: Simplify right side
    215,910.23x = 41,619,304,536.55
  5. Step 5: Solve for x
    x = 41,619,304,536.55/215,910.23
  6. Step 6: Final answer
    x = 192,762.08

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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.