Home / 129,830.60-194,688.30-59,731.40

Finding the Fourth Proportional to 129,830.60, 194,688.30 and 59,731.40

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Solution

The fourth proportional to 129,830.60, 194,688.30 and 59,731.40 is: 89,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830.60 : 194,688.30 = 59,731.40 : x
  2. Step 2: Convert to fraction form
    129,830.60/194,688.30 = 59,731.40/x
  3. Step 3: Cross multiply
    129,830.60x = 194,688.30 × 59,731.40
  4. Step 4: Simplify right side
    129,830.60x = 11,629,004,722.62
  5. Step 5: Solve for x
    x = 11,629,004,722.62/129,830.60
  6. Step 6: Final answer
    x = 89,570.60

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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.