Home / 124,783.38-187,262.55-72,120.42

Finding the Fourth Proportional to 124,783.38, 187,262.55 and 72,120.42

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Solution

The fourth proportional to 124,783.38, 187,262.55 and 72,120.42 is: 108,231.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,783.38 : 187,262.55 = 72,120.42 : x
  2. Step 2: Convert to fraction form
    124,783.38/187,262.55 = 72,120.42/x
  3. Step 3: Cross multiply
    124,783.38x = 187,262.55 × 72,120.42
  4. Step 4: Simplify right side
    124,783.38x = 13,505,453,756.27
  5. Step 5: Solve for x
    x = 13,505,453,756.27/124,783.38
  6. Step 6: Final answer
    x = 108,231.19

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1.5x scale

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.