Home / 145,831.20-218,746.80-52,324.80

Finding the Fourth Proportional to 145,831.20, 218,746.80 and 52,324.80

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Solution

The fourth proportional to 145,831.20, 218,746.80 and 52,324.80 is: 78,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,831.20 : 218,746.80 = 52,324.80 : x
  2. Step 2: Convert to fraction form
    145,831.20/218,746.80 = 52,324.80/x
  3. Step 3: Cross multiply
    145,831.20x = 218,746.80 × 52,324.80
  4. Step 4: Simplify right side
    145,831.20x = 11,445,882,560.64
  5. Step 5: Solve for x
    x = 11,445,882,560.64/145,831.20
  6. Step 6: Final answer
    x = 78,487.20

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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.