Home / 129,881.20-194,807.40-106,466.80

Finding the Fourth Proportional to 129,881.20, 194,807.40 and 106,466.80

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Solution

The fourth proportional to 129,881.20, 194,807.40 and 106,466.80 is: 159,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,881.20 : 194,807.40 = 106,466.80 : x
  2. Step 2: Convert to fraction form
    129,881.20/194,807.40 = 106,466.80/x
  3. Step 3: Cross multiply
    129,881.20x = 194,807.40 × 106,466.80
  4. Step 4: Simplify right side
    129,881.20x = 20,740,520,494.32
  5. Step 5: Solve for x
    x = 20,740,520,494.32/129,881.20
  6. Step 6: Final answer
    x = 159,688.40

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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.