Home / 134,106.60-200,868.30-81,424.20

Finding the Fourth Proportional to 134,106.60, 200,868.30 and 81,424.20

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Solution

The fourth proportional to 134,106.60, 200,868.30 and 81,424.20 is: 121,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,106.60 : 200,868.30 = 81,424.20 : x
  2. Step 2: Convert to fraction form
    134,106.60/200,868.30 = 81,424.20/x
  3. Step 3: Cross multiply
    134,106.60x = 200,868.30 × 81,424.20
  4. Step 4: Simplify right side
    134,106.60x = 16,355,540,632.86
  5. Step 5: Solve for x
    x = 16,355,540,632.86/134,106.60
  6. Step 6: Final answer
    x = 121,959.25

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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.