Home / 223,128.99-307,914.85-126,330.35

Finding the Fourth Proportional to 223,128.99, 307,914.85 and 126,330.35

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Solution

The fourth proportional to 223,128.99, 307,914.85 and 126,330.35 is: 174,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,128.99 : 307,914.85 = 126,330.35 : x
  2. Step 2: Convert to fraction form
    223,128.99/307,914.85 = 126,330.35/x
  3. Step 3: Cross multiply
    223,128.99x = 307,914.85 × 126,330.35
  4. Step 4: Simplify right side
    223,128.99x = 38,898,990,770.70
  5. Step 5: Solve for x
    x = 38,898,990,770.70/223,128.99
  6. Step 6: Final answer
    x = 174,334.10

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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.