Home / 127,831.91-191,747.87-39,085.42

Finding the Fourth Proportional to 127,831.91, 191,747.87 and 39,085.42

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Solution

The fourth proportional to 127,831.91, 191,747.87 and 39,085.42 is: 58,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,831.91 : 191,747.87 = 39,085.42 : x
  2. Step 2: Convert to fraction form
    127,831.91/191,747.87 = 39,085.42/x
  3. Step 3: Cross multiply
    127,831.91x = 191,747.87 × 39,085.42
  4. Step 4: Simplify right side
    127,831.91x = 7,494,544,878.89
  5. Step 5: Solve for x
    x = 7,494,544,878.89/127,831.91
  6. Step 6: Final answer
    x = 58,628.12

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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.