Home / 119,831.20-179,811.60-53,281.60

Finding the Fourth Proportional to 119,831.20, 179,811.60 and 53,281.60

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Solution

The fourth proportional to 119,831.20, 179,811.60 and 53,281.60 is: 79,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,831.20 : 179,811.60 = 53,281.60 : x
  2. Step 2: Convert to fraction form
    119,831.20/179,811.60 = 53,281.60/x
  3. Step 3: Cross multiply
    119,831.20x = 179,811.60 × 53,281.60
  4. Step 4: Simplify right side
    119,831.20x = 9,580,649,746.56
  5. Step 5: Solve for x
    x = 9,580,649,746.56/119,831.20
  6. Step 6: Final answer
    x = 79,951.21

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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.