Home / 109,831.20-164,746.80-109,053.60

Finding the Fourth Proportional to 109,831.20, 164,746.80 and 109,053.60

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Solution

The fourth proportional to 109,831.20, 164,746.80 and 109,053.60 is: 163,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,831.20 : 164,746.80 = 109,053.60 : x
  2. Step 2: Convert to fraction form
    109,831.20/164,746.80 = 109,053.60/x
  3. Step 3: Cross multiply
    109,831.20x = 164,746.80 × 109,053.60
  4. Step 4: Simplify right side
    109,831.20x = 17,966,231,628.48
  5. Step 5: Solve for x
    x = 17,966,231,628.48/109,831.20
  6. Step 6: Final answer
    x = 163,580.40

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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.