Home / 94,831.80-142,247.70-87,228.60

Finding the Fourth Proportional to 94,831.80, 142,247.70 and 87,228.60

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Solution

The fourth proportional to 94,831.80, 142,247.70 and 87,228.60 is: 130,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,831.80 : 142,247.70 = 87,228.60 : x
  2. Step 2: Convert to fraction form
    94,831.80/142,247.70 = 87,228.60/x
  3. Step 3: Cross multiply
    94,831.80x = 142,247.70 × 87,228.60
  4. Step 4: Simplify right side
    94,831.80x = 12,408,067,724.22
  5. Step 5: Solve for x
    x = 12,408,067,724.22/94,831.80
  6. Step 6: Final answer
    x = 130,842.90

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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.