Home / 109,417.20-164,010.60-42,831.60

Finding the Fourth Proportional to 109,417.20, 164,010.60 and 42,831.60

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Solution

The fourth proportional to 109,417.20, 164,010.60 and 42,831.60 is: 64,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,417.20 : 164,010.60 = 42,831.60 : x
  2. Step 2: Convert to fraction form
    109,417.20/164,010.60 = 42,831.60/x
  3. Step 3: Cross multiply
    109,417.20x = 164,010.60 × 42,831.60
  4. Step 4: Simplify right side
    109,417.20x = 7,024,836,414.96
  5. Step 5: Solve for x
    x = 7,024,836,414.96/109,417.20
  6. Step 6: Final answer
    x = 64,202.30

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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.