Home / 153,964.20-230,831.10-83,922.60

Finding the Fourth Proportional to 153,964.20, 230,831.10 and 83,922.60

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Solution

The fourth proportional to 153,964.20, 230,831.10 and 83,922.60 is: 125,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,964.20 : 230,831.10 = 83,922.60 : x
  2. Step 2: Convert to fraction form
    153,964.20/230,831.10 = 83,922.60/x
  3. Step 3: Cross multiply
    153,964.20x = 230,831.10 × 83,922.60
  4. Step 4: Simplify right side
    153,964.20x = 19,371,946,072.86
  5. Step 5: Solve for x
    x = 19,371,946,072.86/153,964.20
  6. Step 6: Final answer
    x = 125,821.11

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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.