Home / 133,826.80-200,740.20-81,252.40

Finding the Fourth Proportional to 133,826.80, 200,740.20 and 81,252.40

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Solution

The fourth proportional to 133,826.80, 200,740.20 and 81,252.40 is: 121,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,826.80 : 200,740.20 = 81,252.40 : x
  2. Step 2: Convert to fraction form
    133,826.80/200,740.20 = 81,252.40/x
  3. Step 3: Cross multiply
    133,826.80x = 200,740.20 × 81,252.40
  4. Step 4: Simplify right side
    133,826.80x = 16,310,623,026.48
  5. Step 5: Solve for x
    x = 16,310,623,026.48/133,826.80
  6. Step 6: Final answer
    x = 121,878.60

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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.