Home / 201,740.85-302,829.98-126,945.45

Finding the Fourth Proportional to 201,740.85, 302,829.98 and 126,945.45

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Solution

The fourth proportional to 201,740.85, 302,829.98 and 126,945.45 is: 190,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,740.85 : 302,829.98 = 126,945.45 : x
  2. Step 2: Convert to fraction form
    201,740.85/302,829.98 = 126,945.45/x
  3. Step 3: Cross multiply
    201,740.85x = 302,829.98 × 126,945.45
  4. Step 4: Simplify right side
    201,740.85x = 38,442,887,449.86
  5. Step 5: Solve for x
    x = 38,442,887,449.86/201,740.85
  6. Step 6: Final answer
    x = 190,555.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.