Home / 148,813.47-205,360.40-80,831.33

Finding the Fourth Proportional to 148,813.47, 205,360.40 and 80,831.33

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Solution

The fourth proportional to 148,813.47, 205,360.40 and 80,831.33 is: 111,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,813.47 : 205,360.40 = 80,831.33 : x
  2. Step 2: Convert to fraction form
    148,813.47/205,360.40 = 80,831.33/x
  3. Step 3: Cross multiply
    148,813.47x = 205,360.40 × 80,831.33
  4. Step 4: Simplify right side
    148,813.47x = 16,599,552,830.37
  5. Step 5: Solve for x
    x = 16,599,552,830.37/148,813.47
  6. Step 6: Final answer
    x = 111,546.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.